Tire Pressure
Elder User
Joined: Jan 2007
Posts: 968
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From: Greenville, SC
it depends what you want. better gas mileage/rougher ride, higher psi. worse mileage/softer ride, lower psi. an easy way to figure out a decent psi is to make a chalk line across the tread of a tire, then get in a drive a few feet and see where the chalk has worn off. regulate air pressure until you get an even wear of the chalk line.
Elder User
Joined: Jan 2007
Posts: 968
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From: Greenville, SC
Originally Posted by irishammer
35 psi is for the stock POS tires that come on the truck....BFG's are 50 psi if I remember right.
Posting Guru
Joined: Aug 2007
Posts: 1,714
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From: Canton, IL
I was running Cooper STT's at 50 psi, no wear problems, and got 19mpg outta my durango consistently. Gave them up in the trade for my 04 screw. They wouldn't have fit anyway. (best off-road tire i ever had, too)
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Sick 'n Tired
Joined: May 2006
Posts: 2,969
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From: League City, TX
Originally Posted by black04lariat
agreed. I had BFG's on there stock, but the Allterrains are higher. I am about 42psi if i recall correctly.
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Thanks guy's. When I had them put on the tire place put 50 psi in the BFG 285 65 18. Truck rode like it had solid tires. Dropped them to 45 psi. Rides better no difference in the positive steering these tires exhibit. A co worker has an FX4 S Crew and he runs 40 psi. He say's it's his second set and has gotten 80 k on both set's at
this pressure. My truck is a Super Cab and I haul more tools than he does so I fugured 45 would be good. I will do the chalk trick and see how that pans out at
45 psi and go from there. I welcome any more info on this and I will let y'all know
what I come up with. Thanks for all the replies.
this pressure. My truck is a Super Cab and I haul more tools than he does so I fugured 45 would be good. I will do the chalk trick and see how that pans out at
45 psi and go from there. I welcome any more info on this and I will let y'all know
what I come up with. Thanks for all the replies.