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
Harvey51 wrote:
Our E350 sticker says 65 front, 60 rear. The Michelin chart says much lower. I tried going 10 lower on both and finally settled on 60 front and 55 rear which seems to make it easier to steer than 5 higher or lower. Oh, I put an extra 2 psi on the passenger side front wheel as recommended by an old truck driver who said it helps compensate for the highway slope away from center.
That would probably be okay if you were driving the Ford cab and chassis with no box on it. I think you are asking for a blowout/tire wear/poor gas millage with that low a rear tire pressure. Go by the house sticker not by the chassis sticker until you get to a truck stop and weigh it when it's loaded and gassed up. Then take those weights and go by the tire manufacturer's chart for that exact size and model tire.
