Psi ?
Senior Member
Joined: Mar 2018
Posts: 112
Likes: 14
I would think the psi for tires would be pretty similar regardless of maker. My Michelin Defender LTX M/S, 275/65/18 123R's are rated at 80 psi max. Per Michelins Tire Pressure Chart, they recommend 35 psi @ 1910 lbs. per tire, we run them 36-37. Our curb wt. is about 5683, divided by the 4 tires that comes to 1421 lbs. per tire, well under the max of 1910 @ 35 psi. Naturally as the weight of the truck and towing increases so will the psi. I think this logic is sound.
Yes, on my last truck with E-rated 37" Toyo's I ran 40-42 in the front, (heavy Cummins diesel) and 26-28 in the rear. Got over 60K miles on the tires and they weren't bald when I changed them out.
When tires are a couple hundred dollars it is not as big of a deal, but when tires are $600 each I like to make them last as long as possible.
David
Senior Member
Joined: Jan 2019
Posts: 333
Likes: 110
'19 F150 4x4 with Michelin 265/70-17s instead of the factory M&S. I weighed the truck when I got it had more than 60% of the weight on the front when empty. When loaded I run more in the rear. I already have more than 20k on them and they are wearing evenly.