I have Nitrogen in my tires... hence why in my car pics I have bright blue stems and caps. I like it, I got it done at a saturn dealership for free (i love knowing managers). Im happy with it, and if it would have cost me money, I still think in the long run it would have been worth it. if you need a fill and dont have time to fill up at the dealership, put regular air in and then bring it to them later. they just drain the air out and recycle nitrogen in.

 

space, i'm going to have to disagree on nitrogen stoping corrosion at the bead, perhaps it would slow it down... you would think under the bead there wouldnt be any air or nitrogen really... the bead is there. so i'm thinking its able to work its way in from the edges slowly. so even if the inside is going to have a problem being nitrogen filled, i'm guessing a combination of air, water and salt could work its way in from the outer edge.

space, i've got a solution for you though, with out of this world prices to boot. magnesium wheels!