Our crazy and weird earth

Hang on lemme try . . .maybe SCIENCE!


Common tactic for anything off road.

Take a small bottle of propane with you, those tiny green or blue ones. When the tires bead slips and you get a flat you press the propane tank against the valve stem filling the tire up slightly with propane. Add fire around the bead and the resulting explosion acts as a vacuum sucking in air while pushing the tire back on to the rim. Thanks to deilax .


  1. True story. I’ve seen it done.

  2. Except we used WD-40. Any Quick dry solvent that is flam-able will work.

  3. Yeah,

    When the gas is ignited inside the tire, it rapidly expands, forcing the tire back onto the rim. No air is “sucked in” – explosions do not cause a vacuum.

    • Sheldon /

      RETARD, the flames use oxygen which created a lack of anything in the space (vacuum created), and it is forced to find something to fill the tire. I would know I have masters degree in aerospace technology at MIT.

      • Frytech /

        Return your masters degree. The flames use oxygen, and return carbon dioxide, and other gasses in an equal portion to the amount of propane and oxygen used in combustion. Ever heard of exhaust gasses? What is it that makes rockets go? A vacuum?

      • I don’t have a Master’s degree in Aerospace Technology, and I knew that… Some people just aren’t that intelligent.

        • I enjoy the fact that sheldon has not responded.

          • Youwanfryri? /

            Lol luke well not everyone is an internet troll, he may not have even came back to look at it.

            This is an old trucker’s trick. Most people don’t use propane canisters as the description says, but rather a small touch (less than 2 seconds) of starter fluid and a flame source. Look up on youtube, and watch all the idiots that waste their starter fluid by spraying the tire for 30-40 seconds hehe, which can be more dangerous also.

      • If it used oxigen why did it stopped burning? ;D

        • Because its isolated from the air of course
          Oops i dind’t say ainything xs

      • Haha yea i go to high school in butt fuck nowhere and i know that shit bro. Noob

    • Here is a quick science trick for you, take a shot glass with a small abound of 151 rum, light it on fire and quickly put your hand over the top against the rim. It will suction onto your hand because if the vacume created. Becareful while doing this, don’t burn yourself!

      • No, that works because when you light the rum on fire, the initial heat causes the gasses to expand. Then, when you cover it with your hand, you create an airtight seal. Once the flame stops due to lack of oxygen, then air cools down and contracts. That is the vacuum you feel – the expansion and contraction due to heat. In the case of the tire, the heat expands the air in the tire, pushing it against the rim. It will then cool and contract, so you will then have to pump more air into the tire to bring it to the proper tire pressure.

  4. Andynym /

    Buzz, explosions definitely cause vacuums. You know fire burns oxygen right?

    • First not all explosions cause fire. When they do that oxygen is replaced. Usually by carbon dioxide, carbon monoxide, or something similar. The oxygen is not destroyed by the fire is is consumed. The difference is the the first would violate the laws of conservation and the second produces waste. An explosion is the rapid expansion of, most often, gases and matter. Explosions may be caused by the rapid collapse of a vacuum or an implosion. Yes, small vacuums may form at the base of the explosion but they are not significant and are caused by the expansion of gases not the burning of oxygen. Nor is it a vacuum that inflates the tire. For the tire to inflate pressure on the inside must be greater than pressure on the outside. Think about it. The expansion happens first. It is what causes the tire to expand and seal the bead. If the vacuum was significant the negative pressure would cause the tire to collapse further.

  5. Heinrich D. Bag /

    I once had a firecracker go off and created a Dyson.

  6. Momanon /

    Andynym, are you trying to say that the explosion creates a vacuum on the outside of the tire and the tire gets sucked onto the rim? It makes more sense to me that the burning gas expands inside the tire onto the rim.

    • GenghisKahn /

      C3H8 + 502 -> 3CO2 + 4H2O

      ^ combustion of propane

      The combustion creates heat which does create a higher pressure in the tire, thus pushing the tire back onto the rim. The resulting co2 and h2o cool quickly creating a lower pressure in the now sealed tire, thus technically creating a vacuum.

      Now if the vacuum is strong enough to suck in air i do not know.

  7. Skip in GA /

    Nice video, bad science.

  8. I wonder what would happen if he burn tire.

  9. Bucky /

    Yeah Buzz and Momanon definitely failed science class.

  10. Very handy thing to know … I don’t do anything off-roady … but I have taken note …

  11. Frytech /

    Heated air expands, cooled air contracts. The burning propane heats the air rapidly causing rapid expansion, faster than it can escape around the tire, thus creating a balloon effect, sealing the tire against the rim. In many cases if you don’t add more air to the tire as the air in the tire cools, the tire will be sucked off the rim by the resulting vacuum. Good video, really bad science.

  12. Whocares /

    Um…seriously…the point is that it works. Shut up.

  13. Wiscorider /

    Exactly! However it does buy you time put air in now that the tire is seated.

  14. “explosion acts as a vacuum” – you couldn’t be more wrong.

  15. If you want the answer to this debate, try this trick with an air mattress. This will give you control of the path the gases travel. Then you will only need to determine direction of gass flow to know if there is a vacuum created. Jeeze folks.

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