Did not relize that Aircraft and Racing cars to name but two..used Nitrogen to inflate their tyres, rather than compressed air.

I noticed its now available from certain Tyre Outlets for Joe public to use i.e purchase. The claim is an improvment in comfort of ride..fuel saving ..tyre life and safety...personally I can't see it should make any difference if you keep your tyres correctly inflated.

Any one tried it?

UKKen.