Episode 15: Scuba Diver, Car Capers

Air Date: July 27, 2004

A SCUBA diver can be sucked up by a firefighting helicopter and dumped on a forest fire.


The type of pumps used in firefighting helicopters cannot continue running once in the air. As soon as the pump is shut off, any caught diver would simply drop back into the water. The pumps also do not have enough suction to suck in a person in the first place.

If you plug the tailpipe of a car with objects, the engine will be destroyed.


All of the objects used were shot out immediately after the engine started up.

If a bullet is shot through the fuel tank of a car, it will explode.


The gas tank did not explode.

(This myth was revisited in episode 38 and it was found to be plausible if the tank is shot with a tracer round.)

A car door can protect you from bullets in a shoot out.


The car door did not stop the bullets shot at it.

A car engine will be destroyed when liquid drain cleaner is put into the fuel tank.


The engine still ran.

A car engine will be destroyed when bleach is put into the fuel tank.


The engine soon died out but wasn’t ruined from the experience. The following morning, the inside of the gas tank was covered in rust.

A car engine will be destroyed when sugar is put into the fuel tank.


The engine ran even better than without the sugar.

Adding mothballs to the fuel tank of a car will increase its horsepower.


The engine still started, but it soon started spluttering. When Jamie pressed the accelerator, the engine sounded more powerful.

When a car radiator is bone dry, cola can be used as a substitute for coolant.


The car ran with cola in the radiator, but it may cause damage.

When there is a leak in a car radiator, cracking an egg into the radiator will plug the hole.


The engine was started after the contents of an egg were poured in, and the leak stopped.

A piece of metal can destroy a car engine when it falls in the carburetor.


A penny dropped in could be heard rattling, but the engine still ran.

Adding bleach to the oil of a car can destroy the engine.


The engine started but it soon started smoking, and very quickly overheated. The engine was so hot, that the undercarriage started burning and Adam fried an egg on the tailpipe. The engine was ultimately ruined.


  1. dan says:

    for the tail pipe what about a truck at a boat landing if submerge the tail pipe in shut the engine off is there enough back pressure to crake the head, will it start again

    • Sean says:

      I do this all the time when loading my boat and after doing it hundreds of time my truck is fine. However if you submerge the rear axle you can get water in the differential which will destroy it over time.

    • JohnF Boulder Co says:

      Some warships had the exhaust vented below the waterline for quietening (not versus subs!) WW2 American PT boats come to mind.
      Yes, maybe these were specifically designed for that.

    • Jon says:

      in order to get enough water pressure to overpower the PSI of the engine exaust you would have to be a great deal deeper underwater Than a boat dock.

      That being said, if you were to shut your engine off while the tailpipe is under water, the potential is there that you may not be able to get it started again.

  2. P Skalla says:

    Even if you welded the tail pipe closed, the main ill effect would be the engine die, or a blown exhaust gasket. In the old days, the exhaust portion of the safety test in Colorado was to plug the tail pipe. If the engine stalled (after a couple minutes) you passed, no stall was a fail. The idea being that if your car didn’t stall, it had an exhaust leak someplace.

  3. Bryan H says:

    I don’t understand what kind of firefighting helicopter rig this is. I thought the myth was about a helicopter that drops a bucket with an open bottom in the water, closes the bottom, then flies it to the fire and opens the bottom again.

    • kevin says:

      This myth was about a helicopter that has a massive suction pump in it and it lowers hose into the lake and sucks water up into the holding tank on the helicopter. the myth was that if someone was in the water that they could get sucked up against the hose and then be picked up out of the water and flown away and then dropped. there are different kinds of fire fighting helicopters and yes they do have one that works by lowering a bucket into water and opening doors to fill the bucket and then closes them when filled.

      • Wesley Hirons says:

        I am a logger and have seen the helicopters that dip water out of a lake like a giant ladel, if someone was swimming they would be scooped up. UNBUSTED!!!!

        • Michael Rawson says:

          If they were testing a myth with a bucket loader then you would be correct. This myth does not. The Heli is equiped with a storage tank that fills with water through a hose and after filling goes to the fire and opens the by door bellow. the myth is that you can be sucke through the hose and into the storage tank. ( The idea that someone would be droped on a fire it is morethan likely that ur method is indeed ideal for the scenario. ) I support your thought but they have spacifics to the myth they must follow according to the information they are givin. Thank YOU!

        • MorganGray says:

          Actually, the dip buckets have a heavy mesh on top to keep debris from the lake or river out of the bucket.
          Even if they did not, the drop opening is far too small to allow a human being, complete with dive gear to pass through.
          And the flight crew visually monitors the bucket. They would see the diver struggling in the bucket and would not complete the drop.
          This is speaking as a former fire fighter.

        • Doc says:

          If you could get past the strainer on the ‘bambi bucket’, the person wouldn’t make it out the bottom…

      • jaybird says:

        the true story is that an airplane came down and dipped into the lake and flew back off.this story has been confirmed and really happened. There is no pump involved the air plane comes down lands in the lake with a giant scoop take back off and drops the water. The man died of a heart attack not from impact or the fire must have been very scary. You could look this up it is a fact I have never heard about that helicopter theory

    • Simon says:

      The myth was actually about the CL145 that is a sea plane that literally scoops up 1500 gallons of water in seconds by landing on the surface. Sometimes I wish these guys would get the story right before testing the “myth”. There is also several other aircraft including helicopters that scoop not SUCK the water up.

      • Harry says:

        The primary objective is to extinguish fires, not watching for scuba divers:)

  4. chris r says:

    Metal down the carb…I accidentally dropped a spring washer down a carb once on an old austin metro. it got past the inlet valves got squashed in between the top of the piston and the cylinder head compressing the edge of the piston and jamming the piston rings. didn’t destroy the engine as such but i didnt leave it running for long. i suppose eventually the rings would have broken up and caused irrepairable damage to the cylinder.

  5. John S says:

    I had a 1970 Volkswagen Beetle engine which I attached a pair of 40mm carbs to. I was firing the newly crafted engine up for the first time without the air cleaners but neglected to notice a washer on the carb-filter stem. It vibrated up the stem and into the carb *immediately* locking the engine. I still have the washer which was squashed flat. I was able to remove it once the head was removed from one side, revealing it to be jamming the piston’s movement. While it didn’t destroy the engine, it rendered it useless until the part was removed.



    • DAVID BELL says:

      during the Vietnam War, we would have the sailors on board the aircraft carrier, fill ping-pong balls with bleach. you take a ping-pong ball,put a small hole in it, fill it, and seal it with paper tape, wipe off till dry. next store in egg cartons hole up. we would take several dozen at a time when we went ashore on missions. on these missions we would encounter motor vechicles of all kinds, quietly open the gas tank and drop 5 to 10 balls into it, depending on size of the tank. quickly recap and get the hell out of dodge!!!!!!!!!!! i have seen some very large craters where a 6by was parked earlier. of course the more combustibles the merrier.

  7. Robert says:

    I thought that a piece of metal will destory a car engine i guess i was wrong.

  8. Krisyn says:

    I actually have something that did mess with the engine of my 94′ ford mustang 3.8 V6…… If liquid Laundary detergent is put into the gas tank with gasoline, it could chrystalize the injecters, crack a head, make the gas non flamable and my a car break down i would love to see it tested on Myth busters!!!!!

  9. Ed says:

    Sorry guys, I once got a small ball bearing dropped down my intake (I think my obnoxious neighbor did it while I was working on the car) and it destroyed the head and one piston. Several hundred dollars damage.

    • Jeff says:

      I had a tiny screw come loose inside my carb and it dropped into the intake. Same story, piston chopped it at the intake on the top end, head, TE and piston were all toast.

  10. Bob: says:

    Sugar in the gas tank will damage all components related to the fuel system… IE: Fuel rails, injectors, fuel lines, and could also damage the pistons/rings…. The fuel filter will get gummed up, shutting down fuel to the motor…. VERY COSTLY!

    • Jim says:

      Sugar will not dissolve in gasoline and it will not pass thru the fuel filter. There has been hundreds of test over the years proving this myth wrong. And unless mythbusters removed the fuel filter from their test car the sugar never reached the engine even if it was suck up from the bottem of the tank. Mythbusters needs to re-do their test otherwise their busted is “BUSTED”!

      • Will says:

        It worked in WW2; I have no idea if modern engines are different enough to stop it..

        • Jeff says:

          Bingo! Newer model cars have fuel filters with a much tighter tolerance, but older vehicles will suffer some damage. The bleach is the way to go.

          • Chris says:

            it’s a really old myth, they should of tested it with engines from that era, with leaded gas and old gravity fed fuel systems

      • mike says:

        I have a block they can look at and see what sugar does to vehicle that only has a sock on fuel pump

      • Lisa P says:

        sugar dissolves in water just pour the sugar water in the tank or a 2ltr of soda

      • Ryan says:

        It is busted, on two counts.

        1.If the sugar can never reach the engine of a modern vehicle than it IS busted. Since the common myth is about a supposedly undetectable and simple way to ruin a vehicle, more so then what happens if sugar injected directly into an engine with safeguards removed. By the time you have to start removing important parts in an attempt to “prove” it works you’ve moved beyond the myth.

        2. The specific use of sugar is often said to be due to the fact that it will somehow form some glue like substance when combined with the gas that’s better at gumming things up. This is bunk, it won’t dissolve, but that’s it. Thus sugar is no different then say sand or any other fine particulate that wont dissolve readily in gasoline. It’s trapped by the fuel filter as designed and has no special effect.

        If a truly large amount is added it might be able to clog said filter given time, but that’s hardly ruining a car. The idea that the entire fuel system would need to replaced as espoused in some comments is beyond stupid ,as noted the sugar doesn’t dissolve, and it would not get past the filters so simply flushing the tank and replacing the filter is the end of it in any modern vehicle. This will cost money, so it’s still viable as a means of payback, but the idea it will destroy the engine or so damage other systems that repairs are uneconomical as often said IS busted.

    • shelby says:

      Would a half a cup ruin a car?

      • Tyler dirten says:

        No I put in a whole bag in a relatives full size van. Took 8 months for it to die

    • Earthling says:

      Sugar in the gas tank caused two of my customer’s engines to completely seize up. Admittedly this was in the days before fuel filters were fitted as standard.

  11. Robert Smith says:

    Will a Pinto really blow up if rear-ended by another car, even at relatively low speeds?

    • JohnF Boulder Co says:

      Feul tank leak/rupture. Other causes led to a fire.

  12. Mike says:

    With regards to the comment about a tailpipe being submerged at a boat ramp and the engine being shut off, the problem is that the water cools the pipe which causes the gas in the pipe to contract, which causes more water to get sucked up in there, thereby cooling it even more, thereby causing even more water to get sucked up there. This quickly fills up the exhaust and probably the cylinders with water. I’ve seen this happen to people who were trying to drive through too deep of water. Usually, to fix it, you just get the car to a dry area, remove the plugs, and crank the engine over a few times until no water runs out of the tailpipe. Of course, this assumes that you didn’t get it in water so deep that you managed to damage other things (e.g. your car computer with newer cars).

    • Levi says:

      The water cant get sucked all the way into the cylinders by this method as that would require the gas to contract to a volume smaller than the cylinder capacity of 1-2 cylinders (on average only 1 in 4 exhaust valves will be open). While gas does contract as it cools, it doesn’t contract that much.
      People driving through deep water normally lose power due to the air intake getting flooded, fortunately most air filters are designed to prevent the water getting into the cylinders which would hydralock them and damage the conrods usually.

    • Chris says:

      boat motors exhaust directly into the water

  13. Robert Paulson says:

    What is the best way to plug a tail pipe?

    • SeattleInvestor says:

      Eddie Murphy used Banana’s in Beverly Hills Cop….

  14. Bill says:

    Potatos work well fpr [lugging pipes, but justt one won’t do, it becomes a potato cannon. (as how i know!) a plugged exhause will cause an engine to not run. I have seen it several times. it will start and die, then start and die untill it won’t start at all. once it sits for a bit and the back pressure releases, it will start and die again.

    Yes, a piece of metal CAN damage an engine, it depends on the type of intake plenum, A fragment can damage a valve or worse.

  15. Kelly says:

    Wanting to know more about the hho powered cars. Some adds claim you can run your car on water and ‘never have to fuel up again’ Any chance it could be tested?- or are there any valid results anywhere?

    • kevin says:

      You cannot run your car on water. Your cars engine needs gas to explode in each cylinder which pushes the pistons which makes the car move. Try it. fill your tank with water and let us know if your car starts. LOL

      • steve81 says:

        Water’s technical name is H2O. H = hydrogen. Very effective explosive gas. Cars run on it very well. Onboard hydrogen extractor, not sure how feesable.

        • karps says:

          It takes energy to separate H and O out of water. Then you burn the hydrogen with oxygen present to power your engine, generating energy to separate more hydrogen and oxygen out of water. Steadily, your supply of water will dwindle, due to waste energy. Meanwhile, there is nothing left over to drive the car. Not feasible.

          Hydrogen fuel cell, using oxygen from the atmosphere is feasible, but you will need hydrogen re-fueling stations, so it’s not free.

    • fi3hilmi says:

      i work at a workshop, and a few customer came complaining their car’s engine start and die. we check every single thing in the engine, eventually we found water inside of the fuel tank. and inside the carburetor.

      • chris says:

        that’s true,eventually,water can start the engine for a while if u are far away from petrol stations but it MIGHT not work.So it’s better not to use water as fuel to start the engine

        • chris says:

          But…what i am guessing is that using oil that you use to cook vegetable could start the engine….(not confirmed,might work in the near future for now,it’s better to use petrol)

    • Dave Franklin says:

      Most clean Hydrogen (which does not exist freely in a pure form in our atmosphere) is created using electrolysis. Electrolysis uses electricity to separate Water into Hydrogen and Oxygen using a hydrogen fuel cell. All Hydrogen Fuel cell vehicles technically run on water, although the water is typically separated into Hydrogen and Oxygen BEFORE being put into the car. (Only the Hydrogen is loaded into the car) Once Hydrogen is stored in the car, a hydrogen fuel cell is used to convert the hydrogen (and oxygen from the air) back into water again, which CREATES electricity (the reverse of the process of creating the Hydrogen). The car then EXPELS water from the exhaust pipe. The problem with actually running a car on WATER (directly) is that it would need to have enough stored electricity in it to first convert the water into hydrogen (which could then be burned with a combustion engine, or reversed through the fuel cell to propel the vehicle using electricity) This would be entirely counter-productive however, since a hydrogen fuel cell is only 25% efficient. It would take 4 times as much energy to convert the water into Hydrogen as would later be produced by converting the Hydrogen back to water using the fuel cell. You’d be better off only storing 1/4 of the electricity required to run a fuel cell in a battery back, and using it to run the car directly instead of wasting 75% of it trying to convert Water into Hydrogen, and then back into water again.

  16. Bob Moore says:

    My son and I decided to test the hydrogen generator theory. We used as a test our Poulon riding lawnmower. We built a well producing generator. Several obstacles were overcome. First was solving a water clarity problem as the water would cloud up very fast and create a layer of scum. Next was adjusting the amps to were hydrogen was produced. We settled on 10 amps and soon discovered it was too much for the battery to handle. We are still playing with it and are not getting expected results. We do not understand how adding fuel (hydrogen) will give us increased mileage without decreasing the original fuel flow (gas). I would be very interested in seeing your crew tackling this myth. As far as we can determine MYTH BUSTED

  17. war gammer says:

    i have seen older cars not run with a plugged ex but the newer ones some of them will release pressure from the spring bolts on the cat converters they will not run at high speeds but they will run an about the crack head at the boat ramp i back mine in all the time an it runs fine even makes some neat bubbles ramps are on an incline water dont travel up hill unless pumped

  18. JoJo says:

    i know for a fact that when you said that putting sugar in a gas tank will destroy the engine as busted, is so not busted. 4 months ago my car engine was destroyed becuase someone put about a cup of sugar in my gas tank. It then went to my engine and I had to buy a whole new engine.

    • TJ says:

      Some times it takes awhile for the damage to occur, it is not an instaneous failure. Some engines may only have valves stick,it also depends on your drive cycle.

    • Anonymous Citizen says:

      Yes sugar will destroy an engine. If you are aware that some vandal did this but only after you have run it until it is in the engine, you can keep it running with clean fuel to clean it.
      The sugar will solidify in the engine thus freezing it up.
      I saw it done by some teen agers in the mid 1950’s and was questioned by the police as someone pointed the finger at me.
      I really didn’t do it and didn’t get in any trouble except I refused to tattle which got me yelled at a lot but that’s all.

  19. Joseph Alvarado says:

    While at a “friend’s” house he attempted to instruct me to pour gas in his carburetor from a plastic fuel can so that he could turn the ignition. I told him “no way”, so he told me to just pour some in a plastic cup and he would turn the key. Again I told him “no way”< and told him to just “jump” the vehicle ’til it started. He snapped at me and told me he knew his truck and that would kill his battery. I told him I wasn’t doin shit and that I was leaving. He said “Fine I won’t pour any gas , just turn the key.” When I turned the key there was a flash of flames accross the windshield and I opend the door to get out there was already spots of flames on the concrete, and whne I turned to toward the front of the vehicle he had the flaming plastic cup in his hand. He dropped the plastic cup directly onto the open can of gas at his feet…eruption…like a tea potblowimg flames instead of steam, roaring flames, crackling hedge, the fuel pump was leaking fuel under the car…HE kicked the can b/c he was hemmed between the front of the vehicle and the house and it splashed gasoline on to my shoe setiing me on fire. I ran into the street dropped to the ground, ripped out the laces and kicked th shoe off. I rean back to my car grabbed an extinguisher and extinguished the flames until the FE was out… FD responded, I went to hospital for 10 days for skin graft surgery and this so-caleed friend of mine has told his insurance company that the vehicle backfired and set the fuel can on fire. He did not tell them that he took the air filter cover off, poured gas into the carb w/o my knowledge (couldn’t see b/c hood was up)or that he dropped the flaming cup and kicked the fuel can causing the gasoline too splash on me. His insurance company has taken the position that the “automobile exclusion clause” does not covrer acts resulting from activities involving vehicles… even though it was not due to the vehicle it was due to their policyholders actions… Can you guys do a show that explains the vaapor density of gasoline and how it remains low to the ground… and that a backfire from the carb would not arch laterally and down to the ground form the center of engine esp. in outdoor conditions?. gas vapors are heavier than air, and even the Int’l. Bldg. Codes require a gas ho water heater to be on a stand 18″ b/c that is an adequate distance that the fumes from a gas spill on the floor will not be ignited by a pilot light… Please let me know if you have had any shows like this in the past so that I can try to prove my point.

    PS- Loved the pix @ Lester’s SF Auto Care, he ‘s my mechanic.

  20. Wendel says:

    Re: HHO power. I would also like to see Mythbusters test the hydrogen engine claim. I think Bob’s use of a lawn tractor has a fault since it does not have a computer to adjust air/fuel ratio.


    • adam says:

      HHO power will work it’s just energetically inefficient. making HHO onboard is like pedaling up a hill and claim that the acceleration you get on the down-slope is free energy. Electrolysis of water is inefficient and storing hydrogen is impractical; storing pressurized browns gas is incredibly dangerous in addition to being impractical.

      Free energy does not exist.

  21. larry says:

    i know for a fact a washer took out piston number 6 in my dodge bigblock,,,and oatmeal and pepper crushed does and well clog heater core ..thats a old 4×4 trick,to get home,and a potato in tail pipe causes a the motor to stall,,,but it starts up after its removed,,,and mthybusters do a canadian mothball mix and test for octain rating increase-tyty

  22. Chuck P says:

    Sorry, but you are incorrect. Metal objects dropped inside an engine CAN destroy an engine.
    I’ve been a Master Certified auto technician for many years and I’ve witnessed first hand the damage caused by small metal objects ingested by engines(both gas and diesel). The damage usually is limited to the piston or cylinder head.On occasion the cylinder wall is damaged, requiring engine replacement.

  23. Joe J says:

    hahahahah for the idiot that said sugar would do damage and cost alot to repair is retarded… you just got jipped at the body shop… the guys just told you that so then they could rip you off and replace all the lines and gas tank in your car… what an idiot

    • give me a break says:

      Wow You sound like you know something. What I know is that I have seen vehicles destroyed by just one cup of sugar. And we did our own test as my brother has his own body shop and it destroyed it in what would have equaled about 20 miles later. I have had my own truck blow from sugar and it was not pretty at all. What you need to do is hold your own tongue when calling people names such as retarded because you sound like one yourself.

      • give me a break says:

        I would have to say when it destroys the entire fuel system, perhaps that is destroying the vehicle!!!!!!!!!!!!!!!!! And the cost is equal to the cost of a motor.

    • TJ says:

      Joe you should try it yourself add 5lbs of sugar to your gas tank and see what happens.

      • blueleader says:

        Joe I have sugered a tank many times yes it does damage. It doesnt run the motor,but kills the fuel system. If someone doesnt have the funds to have someone drop the tank and replace all lines they are out of a car. Try it than tell us who the idoit is.

        • brenda bailey says:

          I have put 5 lbs of sugar in a car it never did anything he’ll I ended up with the car 2 yrs later it still ran

    • Lisa P says:

      I have a car sitting in my driveway right now that will not start. The police have confirmed someone pored soda and some other substance in the gas tank. I needs the tank, lines and injectors flushed before it will run again i dont know what the mythbusters did but sugar will gum up an engine good

      • carjunkie says:

        Ok to say now I been driving past 2 days with sugar in my tank and my 91 chevy caprice 5.0 liter small block v8 still running with no problems I filled tank twice just now put fuel injector cleaner in it so sugar myth is busted so there problem solved

  24. Cee Jay says:

    I know about sugar in gas tanks. Even though it does not ruin an engine it can cause the fual pump and filter to clog over time and may even caramelize on fuel injectors causing for repairs.

  25. Sam says:

    JoJo…did you remove the gas tank and strain the fuel to get that “CUP” of sugar? That’s pretty funny, do the test at home…put one cup of sugar in a gallon of gas, over time the gas eats the sugar, one cup wouldn’t destroy anything unless you were running the car on vapors.
    Everyone else is right though, it will clog fuel pump, injectors, and fuel filters but it’s not going to destroy the engine.

    As far as dropping objects in the carb, MB better try that one again, I’ve seen that happen.

  26. Vibe says:

    A SCUBA diver can be sucked up by a firefighting helicopter and dumped on a forest fire.

    As I remember this myth it was done with a “Bambi Bucket” system. This is simply a bag that is scooped into a nearby lake to fill, and the bottom opened up over the fire. A surface swimmer could easily be caught in such a device.

  27. Nick says:

    For the tailpipe…a large firework shot into the tailpipe of a car WILL indeed cause an explosion as this happened up my block at some girls new mercedes. An arugment arose with some young girls and one lit up a large firework and puggled it into the tailpipe and ran.. The car was in fact totalled from the amount of fire

  28. celio says:

    good thing i bought a lock in gas cap

    • give me a break says:

      good luck with that. every locking gas cap can be opened simply by turning it hard, usually pliers will feel like it was never locked at all.

  29. Ulankin Evgeni says:

    I disagree with a unequivocal result of experiment: the fire helicopter and diver. You have considered only one type of system. And in Russia them two. Second is applied by the helicopter of model Mi26TP-1 and Mi26TP-5. The diver could there get, it is necessary scoop water. I heard this history per 1985-6 years, extinguished a taiga. Check up, it is possible so?
    Thanks. Ulankin Evgeniy.

  30. christopher compton says:

    The myth about sugar in a gas tank is not busted because you did not use a fuel injected motor and that is what is driven today and has been since the 1989’s

  31. christopher compton says:

    If you are useing automotive myths you really need to use todays injected fuel systems because only the hot rods and poeple that take care of there cars use carbuated motors today!!!!

  32. William says:

    Whoever said that a tailpipe will suck up water into the engine has either a) never driven a car/ truck through water and b) doesn’t understand the basic principle of operation of a 4-stroke internal combustion engine.
    If you don’t know what you’re talking about, don’t post – the whole point of Mythbusters is to put an end to myths not start new ones.

    • Joe John says:

      If you’d read the message fully, you’d have noticed that he said if you submerge a hot tail pipe in water and turn off the engine, as the water cools the pipe, the pipe will work like a straw, sucking up the water.

    • Anonymous Citizen says:

      I grew up so far back in the woods that our road crosed the cold spring fed creek four times. Every time we went to town we had to drive through crossings that some were up to the head lights. The only problems it caused was if the water effected the ignition system, or got into the transmission/differental.
      It was a little messy when the water was in the floor. Oh well in those days we had them so long that the floors usually had holes in them anyway. So it came in and went out.
      We even parked the car in water about knee deep to use a bucket with soapy water and wash it. Rensing was just dip and throw water.
      Didn’t think about polution in those days.
      Not good to put detergent in the water.

  33. brian says:

    they did the exploding gasoline tank wrong.i watched the movie and the clip ony shows the car exploding.in the film the car wasent shot in the tank it was shot all over and it had 2 giant tanks of n2o(nitrous oxide)wich also helps to burn

  34. Bob says:

    re: Sugar in gas tank
    Test was flawed due to it’s being too well controlled.
    (This happened to me, subsequently did my own tests.)
    Sugar will not dissolve in gas. It stays on bottom of tank in granular form.
    However, almost all gas tanks (especially older models) have small amounts of water (condensate) in gas tank.
    It stays on bottom as well.
    Sugar will dissolve in this water, and subsequently get pumped through fuel system / engine.

    • Lampwick says:

      If the condensate “stays on the bottom” how does it get pumped through the fuel system? It either collects, or it goes through the fuel pump. Can’t be both.

  35. hey says:

    can chalk in the gas tank ruin anything; someone just did this to me; low lifes

  36. james irving says:

    Someone put alot of bleach in my oil. It hasnt been started but I have been able to change the oil. Do you think it is too late?

    • Ken says:

      Run it for a few minutes until engine warms up. Monitor temp closely and shut off if it begins to overheat. After 10-15 minutes change the oil again and you should be fine.

  37. Sam says:

    @ James Irving it’s never too late it will start and u can drive too…coz I driving a car with no oil now how bad is that compare to u so don’t worry man

  38. me says:

    sam ur an idiot… ur motor is going to go up if u keep friving it with no oil cars and trucks and all motors need oil to lubricate the berrings and the moving parts moron ur gonna b replacing motors for a long time if u run them with no oil and u better stick with a 300 dollar junker… and james jus flush ur motor out a couple times because i know for a fact that bleach in the oil will light ur car up

  39. Torreto says:

    Watching a little too much of the fast and the furious Brian. Brian, that sounds like a serial killer name that’s not what you are is it Brian.

  40. Lew says:

    Moth balls in the gas definitely works but, not by themselves. Castor oil must also be added. The % of each is very important. It’s an old circle track (before NASCAR) trick. The mixture would make the flathead V8 hummmmmm. Not everyone knew the trick heh heh. I think it made a dencer mix of hydrocarbons.

  41. alex says:

    does flower ruin the engine?

  42. Clay says:

    Is it posible make a real Iron-Man suit that works?

  43. michelle says:

    I would like to find out if sugar is put in the oil of an engine, will it ruin the engine. I saw the one for sugar in the gas tank but they say in the oil is different.
    Thank you

  44. me says:

    it is different, sugar in the oil turns it into mollases

  45. Bryan says:

    If you put gas in your car while the car is still on, will the car blow up?

    • Deweyoxburger says:

      Um , no…..
      I live somewhere were it is cold as hell nearly 9 months out of the year. shut off our cars as we gas up…hell no , no one shuts that heater off that long.
      I assume the signs you see at gas stations saying to turn off the engine far more apply to vapors and possibility of causing a flash or fire , no matter how minimal it may be.

  46. adam says:

    prolong engine treatment running a car with no oil driveing a dodge viper 10 cycl 200 mph and keeping it running and snow no signs of engine damage?

  47. adam says:

    prolong engine treatment running a car with no oil driveing a dodge viper 10 cycl 200 mph and keeping it running and show no signs of engine damage? Same as slick 50 engine treatment?

    • adam says:

      the dodge viper that i might add had no oil pan on during there add on tv.

  48. Mary Tucker says:

    I’m agreeing with those above that the scuba diver in the forest myth was told with the bucket type device not the one investigated on the show. I actually don’t think it ever happened but do think it could be plausible with the bucket device.

  49. sean b says:

    i got a friend who has a locked up engine in a 2009 ford truck with a Triton engine because of sugar in the gas tank or could it be something else that got put in the gas tank. repair cost for their truck is estimated around 6k.

    • Arshad says:

      U234. Anyway it is an interesting oraibvsteon that the ration of abundance of U234, U235, U238 on the earth is almost exactly: alpha^2 : alpha^1 : 1 The discrepancy is less than 0.01% in the above relationship. Why there is such a conincidence? No one knows. And I am probably the first one noticing that coincidence. If all the elements have one origin and then continuously decay off at different rate, then the conincidence wouldn’t hold for very long as the abundance changes over time. However if there is a source continuously replenishing them, then the number may reach an equilibrium over time and so the ratio may reflect some physics relationship.Quantoken

  50. Dave says:

    First, sugar in the tank is an old trick, so it was around when carbs were on cars. I don’t know about how long it takes to dissolve in gasoline, but sugar is flammable, and burns into an expanding chunk of sticky carbon. I believe the idea is that it ruins the engine when it burns in the cylinder. If regular sugar doesn’t dissolve in gas, just use Kayro syrup.

    Next, an engine is an air pump, and the exhaust is the outlet. It will not suck water with the air pumping out, and cannot with the engine off. I have backed down boat ramps into water many times, driven through floods, and even had water shot up my exhaust with a hose. No problem.

  51. steve says:

    notice how they used a chevy small block? you just cant kill a chevy!!

  52. shaw says:

    if you been drinking 151 rum before you pee in someones gas tank it will only make it run better ;)

  53. Tony says:

    I been using Moth Balls (old fashioned) in my gas tank for over 5 years, in both of my cars 1997 and 1996 Honda Accord, I use them at a ratio of 2 balls per gallon and I can say I never had any problems with anything, the cars have 178K (1996) 157K (1997) milles, it does improve gas milleage, it does improve horse power and do not damage my O2 sensors, gas pump, injectors or cathalitic, only time I had the check engine light on was when my sensor for the speedometer broke. I have had reccomended a few friends to use them and they are happy with the extra power and the extra miles per full tank. Grab a clear glass fill it up with gas and drop 1 moth ball on it (way more than the 2 per gallon ratio) still will dissolve. I have heard about toluene but haven’t tried it yet. Old Fashioned Moth Balls (made of 99.9% naphtalene)sold in many big markets has work for me for several years with no damage whatsoever to my engines. Just my 2 cents.

  54. Mindy says:

    The bleach in the oil, does it work, how much do u put, & will it blow up on me if I put it in there while engines not running? If tht is to dangerous or doesn’t work, will sugar in the oil work jst as well as putting it in the gas tank, how would u get metal into a engine, can u drop some in the oil & it work?

  55. B says:

    Sugar in the gas tank may not destroy and engine but pancake syrup added to the engine oil will lock an engine up solid. I had someone stealing gasoline of my property and I left a quart of motor oil out for them to steal. It was half motor oil and half pancake syrup. The person who I thought it was had there engine lock up solid the day after the quart turned up missing. That person got what they deserved.

  56. bob says:

    What does drain cleaner in an oil tank do?

  57. tabitha says:

    In response to bleach in the oil, the same results happen when bleach is added to gas….vehicle starts and runs long enough to make it around the block….then it stalls and wont start again. When taken to the mechanic they said water in the fuel LOL I guess its undetectable. Get a lock gas cap!

  58. Ghost says:

    What about bleach in a diesel fuel tank ?
    Think it’ll break it ? Lol

  59. Lisa says:

    My daughter accidently put kerosene in my car,she assumed it was gas because it was stored in a gas jug.Could anybody please tell me the effects this will cause to my car,its a Grand Maequis…..please help,thanks!!!!

    • John Knoefler says:

      Just drain the tank to avoid problems. Why worry about it. It can cause the engine to overcompress and it will be very smokey.

  60. Roger says:

    I lived on a farm where sometimes our methods of fixing a car just to get it down the road were a little uncouth. I fabricated an air cleaner for a weber carburetor on a cj-7, out of sheet aluminum, a rag, and two bolts and nuts. I made a fatal error and put the nut on the inside of the air cleaner box. It vibrated loose, fell in the carb and made it’s way into the firing chamber where it proceeded to bounce around on the aluminum piston head destroying the piston and ring. I think if the piston were steel maybe it would’ve survived, but it was in there while running long enough to disintegrate the nut and destroy one of the compression rings. We fixed it though so technically it didn’t destroy the engine.

  61. Moe says:

    Placing objects in the tailpipe is one thing, but we used to take great stuff (the insulation in a can that expands and hardens) and stick the pipe as far into the tailpipe as it would go and let it rip. By morning it would expand large enough to block the tailpipe and harden into the shape of the muffler so it couldn’t possibly shoot out.

  62. MasterOFDisaster says:

    first of all as for the sugar in the gas tank, they didn’t do it correctly…if you have a gas tank that is halfway full of gas which on average is about 12 to 13 gallons of gas, and you put about four or five 5lbs bags of sugar in that tank, it will absorb the gas and prevent the gas from reaching the pump to go into the engine. No if ands or buts about it !

  63. John Knoefler says:

    Sugar in Gas Tank. Some tenants put sugar in my gas tank. The first day was no problem. In fact I used the vehicle for a couple months and never knew it other than I kept having it looked at since it was no longer running properly. Then they did it again. I still didn’t know it. But the vehicle ran very poorly and no one could figure out why even though I changed filters spark plugs, and rotor. Nothing helped. Then they did it a third time and vehicle stalled out twice on the way to town. The previous time when I fueled up I noticed that fuel kept backing up and shutting off the pump. I couldn’t see any reason why. This time when I went to put fuel in I saw sugar around the fill tube. Took tank off and cleaned all sugar out. It was in three layers. The fuel had a milky look to it. I had to throw it away. I replaced fuel filter on pickup. Replaced inline filter. Nothing helped. My engine would run but lacked compression. Sugar in the gas will ruin your engine over time since there is water in fuel and sugar does tend to dissolve a bit. If you doubt this then put sugar in your tank and let it stay there for a couple months. The dissolved sugar will make it’s way to your engine block.

  64. Greg says:

    We stopped my mates Suzuki Sierra, on his wedding night when he was leaving, with a potato. Use a large potato and kick it in with your foot so that the potato is jammed. His car would not start and we have about 50 plus witnesses for it :). Plus the sandcastle on his bonnet

  65. SeattleInvestor says:

    In regards to tracer rounds:

    The first correct burning shot of a tracer round into a full gas tank will not explode. It’s impossible since there is no oxygen in the tank, and the fuel/oxygen is not mixed.

    You could get a hyrdostatic “burst” similar to shooting a milk carton full of water.

    You would cause a gas spill, even a spray as the bullet exits the tank. This spray of fuel will mix with air and vaporize, and start a fire, which will be fueled by the leak from the hole(s) you made, as well as any likely seam fractures.

    It’s all basic physics.

  66. SeattleInvestor says:

    re: Tailpipe

    The pressure will eventually stall the engine, or find a weak spot in the exhaust system.

    The head/block will not crack. The pressures are not even within a power of 10 for each system.

    Basic Physics….

  67. SeattleInvestor says:

    re: Dropping stuff into an engine

    It depends on what is dropped and “luck” as to where it lands. Anything that makes it to the cylinders to bounce around or wedge itself in there is not good. You may run for a while, but bring it up on the highway and you will have a damaged cylinder.

  68. SeattleInvestor says:

    re: tailpipe

    Reading comments on boats. Most large boat exhaust systems run through a water muffler on board before exiting. The exhaust is at, or just below water level at the dock. Increases back pressure, yes, but not only quiets the boat, but cools the exhaust so you don’t burn your fiberglass boat.

  69. Volt says:

    Plugging the tailpipe of a car – when I was a kid we shoved large potatoes up the neighbor’s tailpipe. It didn’t destroy the engine but it did make a heck of a whistling noise and the car seemed to be underperforming (we were watching him drive off to work). In the evening he spent all night removing the multitude of potato.

  70. jizzle says:

    I had antifreeze out in my gas tank drove about two mile and I am now replacing the whole engine and fuel injectors. So yes antifreeze will ruin an engine

  71. Chuck says:

    one of my friends dropped little nut into the intake of a carburetor when we were in high school it soon destroyed the motor we opened the motor up that little nut beat on the piston Wall on the piston head punched a hole in it and chiped the valve

  72. dave says:

    Bb’s down where the oil goes.case closed

  73. Chris says:

    I accidentally put 2 cups of round up in a diesel tank
    What will happen

  74. Jonathan says:

    Some low life put an egg down my gas tank. Will the gas dissolve the egg? Or will I need to take off the entire gas tank and replace the gas filter to get rid of the egg? I’m freaking out considering it’s a new vehicle too…

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