Originally Posted by
WestPablo
All I know, is that many years ago, I once tried to fill my bicycle tire with air from a gas station and the darned thing blew my tire up!
I've been a believer ever since!

Same here and it even bent my rim. Mine happened at a gas station which was also a truck stop. Trucks need more pressure. Also this was before hook-beaded rims and gumwall tires took less pressure.