Originally Posted by 2008Seneca
Have it weighed but run at the max?
Weighed yes. Max maybe. Use the sticker from the coach manufacturer as a starting point.
P.S. We don't claim to be automotive engineers, but we did stay at a Holiday Inn last night.
Sticker on Greyhawks says 80 psi rear which is max. Your Seneca has bigger tires and may not be needed at max on the rears like regular class C’s.
Have it weighed to determine front pressure not rear. Run rears always at 80psi which is max on a Greyhawk.
Weighed will help make sure your not overloaded on the rear and will help with determination of front tire pressure.
Greyhawks and Seneca’s are two completely different animals.