TexasCHLforum.com

' If oxygen molecules leaked out of tires to a significantly greater degree than nitrogen molecules, then over time your tires would have a higher and higher concentration of nitrogen in them anyway, even allowing for occasional refills with oxygen containing air.

skip the road hazard warranty.

Sometimes, skipping it is not the way to go. I always get the road hazard warranty. There is a lot of new home construction going on in my area. that means lots of nails in the street. I get a nail in a tire every 6 months or so, and it's often unrepairable, so, new tire on warranty. And, for a few bucks, you can buy the new tire warranty on that replacement tire as well. Due to this, I may never have to actually pay for a new tire again.