Quote Originally Posted by jcoulter View Post
Chalk, hmm? Hadn't heard that one. I'll have to grab the kids sidewalk chalk. My buddy once told me about using flour but I never did that cause of the mess it would make.
Ya just draw really thick patch with your kids sidewalk chalk and drive over it. That was Doc's suggestion I never got around to trying it yet. We had this PSI=MPG discussion before. I settled around 40PSI for my needs.