Tire pressure at 80 PSI ?
I see that the tires on my class B RV is clearly marked 80 PSI, but the previous owner have all 4 tires at around 60 PSI . Should I increase the pressure to 80 PSI ? Sorry to ask this silly question ,...
Forum Discussion
Read the whole label on the tire, not just the big print. It's something like 'Max load xxxx lbs at 80 psi'. This is a major hint that correct inflation is weight-based.
Some upfitted vehicles take a bit more due to unusual vehicle dynamics, like my previous Roadtreks... 70 psi rear (IIRC) by weight, 50 front. But that didn't allow for the top-heaviness of a B. I ran 65 F & 80 R. No issues with good tires, other than squirrely Dodge handling.
Load as for travel, including passengers. Go to the scales. Look at the tire maker's inflation/load chart. Add some air in the rear if it drives better.
Jim, "Some people hear voices... some see invisible people... others have no imagination whatsoever."
Some upfitted vehicles take a bit more due to unusual vehicle dynamics, like my previous Roadtreks... 70 psi rear (IIRC) by weight, 50 front. But that didn't allow for the top-heaviness of a B. I ran 65 F & 80 R. No issues with good tires, other than squirrely Dodge handling.
Load as for travel, including passengers. Go to the scales. Look at the tire maker's inflation/load chart. Add some air in the rear if it drives better.
Jim, "Some people hear voices... some see invisible people... others have no imagination whatsoever."
