That's exactly right ! the only thing is the tyre dealer wants to make an extra buck/euro/pound !David C said:Yep for road use it is a complete waste on money.
The only reason to use it in for racing so that the rate of expansion with heat is always a known constant. Because normal air has a varying amount of moisture the variation in resultant pressure change as the tyre heats up is too much for top racing.
On the road you are not going to notice any difference and as soon as you check and top-up your tyres it will effectively become normal air anyway.
Plastic Pig said:Sure he didn't mean "hydrogen"? That should lighten the car and improve tyre wear.
My dad had N2 in his car for a couple of years and that was the most noticeable effect. He almost never needed to top them up.Spark said:Had nitrogen put in at last tyre change no extra cost & so far after 6 months have not had to top up but the tyre company said if it needs topping up then they do it for free.
The reason it stays at pressure apparantly is something to do with molecule size not being able to pass through the rubber of the tyre
jabberwocky said:because of the flap on about higher fuel prices in the states they are apparently putting nitrogen in their tires because some clever yanky doodle said you get better mpg :cheese: :cheese: :cheese: :cheese: :cheese: :cheese: :cheese: :cheese: :cheese: :cheese: only in America
Nitrogen will diffuse through rubber, just at a slower rate.jonwood79 said:Nitrogen doesn't seep through the rubber of the tyre, so you don't have to check your tyre pressures so much, or at all some claim. If they're doing it for no extra charge, let them go ahead IMHO.