Q&A for How to Siphon Gas

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Question

Can I siphon straight from one car to another?

Community Answer

Yes, as long as the gas level in the car you are siphoning from is higher than the end of the hose where gas comes out.

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Question

If my car is on a hill, can I still siphon gas?

Community Answer

Yes, when siphoning, you create a vacuum, thus letting the flow of gas overpower the force of gravity.

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Question

Is this method cheaper than buying gas?

Community Answer

Siphoning gas from another vehicle is free, but it's illegal. If you get caught, you will have to pay a fine and/or court costs, in which case it will not be cheaper and it will certainly be more inconvenient.

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Question

How do I dispose of bad gas?

Community Answer

You can dispose of bad gas in multiple ways. You could burn it, or just dump it into the ground (although you should check your local laws first). Gasoline also works really well to degrease and clean things like spark plugs. There may be somewhere local you can get rid of it too, so I suggest doing some research on gas disposal facilities in your area.

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Question

Do newer cars have anti-siphon devices?

Community Answer

Some do, but the only way to know for sure is to read your car's owner's manual or look up the make and model online.

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Question

The tube doesn't go all the way in. About 5" of tubing are still on the outside of the car. It seems to get stuck on something before getting to the gas. I just hear air when squeezing the bulb. What should I do?

Community Answer

This likely means that the car is equipped with an anti-siphon device. You will not be able to siphon if this is the case.

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