Montana Owners Club - Keystone Montana 5th Wheel Forum - View Single Post

KirkFess · 10-01-2023, 11:38 PM

I worked for Freightliner for 18 years. Using that as my base of knowledge.
. In the original post, the reference to 65 pounds is the sticker in the door jamb. The 65 pounds on his truck is the recommended tire inflation pressure that the truck manufacturer gives. This rating is developed by the engineers to satisfy several things - safety, tire wear, and drivers comfort. The sidewall rating on the tire will be equal or higher than this number.

It is OK to exceed the number on the door jamb, it is never OK to exceed the rating on the sidewall.
I have a 02 ford f250 with E rated tires. I run the truck at the door jamb numbers when not towing or hauling heavily loaded. I run at the max rating on the tires when hooked to my Montana.

When I drop the camper at a campsite and run empty at the max pressures the comfort level is poor. It makes the suspension feel stiffer.

10-01-2023, 11:38 PM	#30
KirkFess Established Member Join Date: Oct 2016 Location: salisbury Posts: 24 M.O.C. #19092	Tire pressures I worked for Freightliner for 18 years. Using that as my base of knowledge. . In the original post, the reference to 65 pounds is the sticker in the door jamb. The 65 pounds on his truck is the recommended tire inflation pressure that the truck manufacturer gives. This rating is developed by the engineers to satisfy several things - safety, tire wear, and drivers comfort. The sidewall rating on the tire will be equal or higher than this number. It is OK to exceed the number on the door jamb, it is never OK to exceed the rating on the sidewall. I have a 02 ford f250 with E rated tires. I run the truck at the door jamb numbers when not towing or hauling heavily loaded. I run at the max rating on the tires when hooked to my Montana. When I drop the camper at a campsite and run empty at the max pressures the comfort level is poor. It makes the suspension feel stiffer.