Is it worth the added expense to use nitrogen to inflate tires? Answered
I bought a new car last week and while doing the final walk around inspection before leaving the lot, I noticed the tire valve stems all had green caps. I asked the salesperson about them. She informed me that the dealership refilled all of their new cars' tires with N2. And then she rendered a rehearsed pitch about the benefits of N2 vs. air, less leakage, little tire pressure change and so on.
By that time I just wanted to get the hell out of there and go home. I started thinking about the N2 issue today and after checking around, I found that it is very difficult to find places to refill the tires with N2 and those that do have it charge $5 to $10 US per tire for a refill.
As of now, I plan to refill the tires with regular air when needed and throw the green caps away.
My question is, does anyone have any real world experience with N2 inflated tires and any bits of advice or information to pass on.