Car Tyres

Discussion in 'Tyres' started by MrAliT, Jun 30, 2014.

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  1. OK I appreciate this is the wrong place to ask but I expect some will know the answer to a few of these questions.

    I took our car in for a couple of new tyres today and there were a few things that puzzled me. They are now filling everything with Nitrogen rather than air...apparently you get less leaking out of the tyre and it doesn't perish the rubber....also more stable in terms of temperature so the tyre works within a smaller temp range. Why don't we do this for bike tyres? With the difference a few psi can make to a bike tyre once its warmed up (especially on track when you can take out 5 psi so they are good when warm), you'd think that it would be the perfect application.

    They also checked the tracking and it was marginally out....now I know that tyre wear will increase if the tracking is out but is a couple of mm out worth the £57 they charged? Will that sort of misalignment have any bearing on the wear rate?

    Interested to know anyone's thoughts
     
    #1 MrAliT, Jun 30, 2014
  2. first of all was your steering wheel off center. where your previous tyres wearing unevenly. quickfit charge you extra for nitrogen. defo worth getting tracking done, fuel consumption,handling and extra tyre life.
    when checking your tyre pressures every fortnight. always add 0.4bar if tyres warm
     
    #2 finm, Jun 30, 2014
  3. Wheel was maybe slightly to the right by a couple of degrees but nothing that pulled. Previous tyres seemed Ok.... Maybe slightly more warn on the nearside bit it was even wear across the tyre.

    No extra charge for the nitrogen. Why not use it in bike tyres...... Any theory?
     
    #3 MrAliT, Jun 30, 2014
  4. Air is cheap and plentiful ?
     
    #4 johnv, Jun 30, 2014
  5. thought air was mostly nitrogen (75% ish)
     
    #5 chizel, Jun 30, 2014
  6. But isn't pure nitrogen 100% nitrogen?
     
    #6 Drinky, Jun 30, 2014
    • Funny Funny x 1
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  7. You sure?
     
    #7 Balmy, Jun 30, 2014
    • Like Like x 1
  8. I may be wrong.
     
    #8 Drinky, Jun 30, 2014
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  9. They do use it in bike tyres. Some use in racing too, as its less (or not, cant remember) susceptible to heat and therefore your tyres stay at same pressure hot or cold

    My local bloke sears by it
     
    #9 bradders, Jun 30, 2014
  10. That's why they've used it in F1 for years..... Much more stable.
     
    #10 MrAliT, Jun 30, 2014
  11. So those places where they keep and train horses ... pure nitrogen?
     
    #11 Loz, Jun 30, 2014
  12. I had a new tyre fitted to my car two months ago at an indie in Huddersfield, and they did the tracking (it was slightly out) for 20 quid.
     
    #12 wroughtironron, Jun 30, 2014
  13. It must be pure they pump in or you still get the affect of air being in there
     
    #13 bradders, Jun 30, 2014
  14. It was front and rear. If it had been front only it would have been less.
     
    #14 MrAliT, Jun 30, 2014
  15. my point was if air is cheap and plentiful then nitrogen cant be too far behind....
     
    #15 chizel, Jun 30, 2014
  16. Its 50p for 45 seconds at my local BP..
     
    #16 bradders, Jun 30, 2014
    • Like Like x 1
  17. that's more than petrol!!! ( I think)
     
    #17 chizel, Jun 30, 2014
  18. steering wheel of center is a good indication that your tracking is out, and can affect vdc and esp. not convinced about nitrogen unless they are removing the air after mounting the tyre.
     
    #18 finm, Jun 30, 2014
  19. You get niffty green dust caps with nitrogen though, makes it worth it in my opinion ( unless of course your car colour clashes with the green).
     
    #19 Drinky, Jun 30, 2014
  20. I believe the other issue is water vapour which is very susceptible to temperature changes causing pressure changes. Compressed nitrogen is dry as well as being, well, nitrogen.
     
    #20 johnv, Jun 30, 2014
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