I use 78% nitrogen in my tires. Works great!

 

lol, me too.

 

yep....as soon as i got new tires i got em filled with nitrogen...funny thing tho....because it helps the longevity of your tire, a lot of tire places around me wont do it for you....like the jacka$$es at town fair tire told me.....they want you buying as many tires as they can...why would they try and make the ones you buy last longer?....a$$holes...