Quote Originally Posted by Perry Hilbert Jr View Post
As long as it doesn't slow the filling process. My truck tires are supposed to get 60 lbs pressure. The gas station pumps take a good 10 minutes to get one tire from 50 to 60. The old compressor I had in the shop could go from 0 to 60 in the tire in about 45 seconds. When that died, Mrs. got me the 120 dollar wonder at Harbor freight. Takes forever also.
Some of my tires call for 80 psi, specifically when hauling heavy loads. Even my 5hp 60gal compressor takes a little while.

As for tire pressure I've been warned that for a, say, 8000-10000 lb load on a heavy trailer it is important for the pressure not be too low and especially not higher than the max specified, since, yes, the pressure increases as the tire gets hot. Don't want a blowout on the highway with a heavy load! Been there, done that. Took hours to change to the spare.