Tire Inflation Question

k9dad wrote:
I have a 32vs Fleetwood Southward with Michelin 235/80, R22.5 xrv tires. The max pressure is stated at 110 psi for all 6 tires. I do not have access to weigh individual axels. I do not have access to weigh individual axels. My RV has a weight of about 23,000. We don't overload but I guess with gas,fluids,people,gear etc. we are about 24,000 to 25,000 lbs. I have been running 100 psi in all 6 tires. Would like to get a softer ride and am thinking about going to 90 psi. Is there a minimum psi? Will this work? Will my tires run hotter? Will additional friction reduce mileage?Do most people run at maximum psi for RV tires? Any good advice please.

Hard to believe that so many will just guess at tire pressures to suit their ride preference or other for something that is so important and possibly cause a high speed blowout. You just need to weigh each axle and there's scales that will do so everywhere and mainly at truck stops, including some at the weigh stations that will comply with a request to do so. Then add 10 - 15 psi for a cushion to take care of the variables. In a pinch, inflate them to support the max. axle weights listed inside your coach somewhere.