Forum Discussion
Terryallan
Sep 07, 2014Explorer II
I don't understand the idea some of you have about the NASCAR guys using nitrogen to keep the PSI the same. IF you had ever watched a race. You would know they start out on LOW PSI tires, and wait for the pressure to build as the tires heat up. So IF in fact they are using Nitrogen. It does expand as it heats up.
About RV Tips & Tricks
Looking for advice before your next adventure? Look no further.25,179 PostsLatest Activity: Jan 16, 2026