Tire Pressure Quandry
I have a 2003 Fleetwood 24' Class C RV. I purchased it used with almost new tires on it. The Ford cab door jam sticker indicates LT225/75R 16E tires (front and rear) with Front @ 65PSI and Rear @ 80...
Forum Discussion
Your 215/85R16 Load Range E tires take, and require, the same pressures as 225/75R16 Load Range E tires.
I stopped using what my 24 foot Class C came stock with when new - 225/75R16 Load Range E tires - two tire replacements ago. 215/85R16 Load Rand E tires are about 1.1-1.2 inches larger diameter (but they are slightly narrower width) than are the stock 225/75R16 Load Range E tires.
I prefer the taller tire for more ground clearance. Also, my Class C's chassis is an E450, which has slightly lower rear differential gearing than an E350 chassis. The taller tires offset some of this lower rear differential gearing so that E450 fuel mileage is improved a bit up towards fuel mileage of an E350 chassis.
I stopped using what my 24 foot Class C came stock with when new - 225/75R16 Load Range E tires - two tire replacements ago. 215/85R16 Load Rand E tires are about 1.1-1.2 inches larger diameter (but they are slightly narrower width) than are the stock 225/75R16 Load Range E tires.
I prefer the taller tire for more ground clearance. Also, my Class C's chassis is an E450, which has slightly lower rear differential gearing than an E350 chassis. The taller tires offset some of this lower rear differential gearing so that E450 fuel mileage is improved a bit up towards fuel mileage of an E350 chassis.
