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Nitrogen in the tires?

This is a discussion on Nitrogen in the tires? within the General Help forums, part of the LSx Technical Help Section category; Ok it seems like every time there is a gas crisis I hear the fill your tires with nitrogen commercials. ...

  1. #1
    Senior Member kool-aide's Avatar
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    Nitrogen in the tires?

    Ok it seems like every time there is a gas crisis I hear the fill your tires with nitrogen commercials.

    Bottom line, does it really improve your MPGs, and I'm talking more than 1 or 2 extra.

    The way I look at it is the O in the tires doesn't weigh enough compared to N, so i don't see a MPG increase because the car is lighter.

    I'm pretty sure N is a lighter element than O, so would N have a tendency to leak faster than O? I'm not saying you'll have a flat in two hours or even two weeks, but wouldn't you still loose N over time just like you loose O over time?

    I just have to ask, because I get tired of hearing about people getting an MPG increase just because they roll with N vs O.

    I mean 2-3 MPGs is like a 10% increase on most cars. I can't even get that kind of increase even if I baby it and drive 60 on the highway.

    thanks

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    Senior Member TransAm11973's Avatar
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    well i dont know about the weight but i do beleive that the nitrogen does not expand and contract as much as oxygen does in the tires.

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    Junior Member jc99ls1ss's Avatar
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    Quote Originally Posted by TransAm11973 View Post
    well i dont know about the weight but i do beleive that the nitrogen does not expand and contract as much as oxygen does in the tires.
    +1 not affected by temperature's hot or cold

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    Senior Member kool-aide's Avatar
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    i could agree with that, but are tires designed to hold that gas? I'm looking to compare the idea of O escaping the tire vs can N escape (even if at a slower rate?

    so is that the trick behind better MPGs the fact your tires stay at the same PSI for longer?

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    nitrogen will not seep through the tiny holes in the tire compound like o will plus it will not deteriorate your tires like o will because it doesnt build up condensation inside the tire when they cool down like o does i worked at a tire manufacturing company and retread company leaned this from the old timers there also n doesnt expand like o will at high speeds thats just the info i recieved hope it helps

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    Senior Member kool-aide's Avatar
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    Quote Originally Posted by mikeh421 View Post
    nitrogen will not seep through the tiny holes in the tire compound like o will plus it will not deteriorate your tires like o will because it doesnt build up condensation inside the tire when they cool down like o does i worked at a tire manufacturing company and retread company leaned this from the old timers there also n doesnt expand like o will at high speeds thats just the info i recieved hope it helps
    ok, so can N really give a diff in MPGs that makes it worth the cost of filling the tires?

    BTW, I have no idea what the cost is, but I'm sure it's not free.

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    Member scotthd's Avatar
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    its cheap the tank and regulator is what cost the money I do commercial hvac and always have it on my truck it usually costs about 15 dollars to fill a 40#tank..

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    alot of tire centers have it now and give you the choice if not you can find it for under 20 bucks

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