Lowering TV tire pressures
For those of you with diesel HD trucks that lower their tire pressures when not towing, what do you set them to? My Ram calls for 60psi front and 80 in the rear. As most know, this gives a pretty h...
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My '03 Dodge/Cummins came with LT265/70-17 E. The door post says 50 psi front and 80 psi rear and came from the dealer as such. The trip home the front tires had the roll over feeling. A RR showed the outer edges were badly scuffed so I did a chalk line test. I increased psi to 65 which gave the 115k miles of service empty or loaded with GN's and 5th wheel rv trailers.
Ran the chalk line on the rears and it showed 45 psi allowed a full tread contact patch. Like the front tire they ran for 115k miles till they finally wore down to just before the tread wear indicators.
After owning eight different one ton DRW trucks for my hauling business.....six 1/2 ton trucks.....four 3/4 ton trucks I could care less what the door post psi says.
I'm tight so I use the best pressure that gets the best tire milage/ride comfort for my tires.
Living out here (rural roads and interstates) will give my vehicle longer tire mileage over city driving.
Ran the chalk line on the rears and it showed 45 psi allowed a full tread contact patch. Like the front tire they ran for 115k miles till they finally wore down to just before the tread wear indicators.
After owning eight different one ton DRW trucks for my hauling business.....six 1/2 ton trucks.....four 3/4 ton trucks I could care less what the door post psi says.
I'm tight so I use the best pressure that gets the best tire milage/ride comfort for my tires.
Living out here (rural roads and interstates) will give my vehicle longer tire mileage over city driving.
