Paxford

That's exactly the type of info. I am looking for. Max psi would make sense if the tires were under . . . I don't know, say a 5 ton vehicle, which my F150 ain't. There has got to be a sweet spot where the tire's contact patch doesn't bow (due to higher psi) and wear the middle faster, and where the tire's contact patch doesn't turn concave (due to lower psi) and wear the sides faster.

Bassackwards, is your truck a reg, scab or screw? And wear exactly is your PSI, 41? I will adjust mine accordingly accounting for any weight differences between your fifty and mine.

Rightside

Did you guys see a drop in mpg's with these tires?

BassAckwards

Mine is a SCrew w/ 6.5 ft bed and weighs ~5200lbs I'm running about 55-60 I think right now.

FTruckTough does raise a good point and is making me want to watch my tires even more anally than I do already but I see treadwear on the outside lugs of my tires as well, which leads me to believe I am in that "Sweet Spot" of tire pressure, and would only need a little more air if any at all. Hopefully this can be a good thread for people to find what pressure gives the most longevity to our tires based on others experience

ftrucktough

Slightly on the highway, more noticeable in the city, due to the extra tire height. If I take it easy on the highway though and not bucking a headwind I can still break 20mpg, so it didn't kill it.

Platinum_Sean

I've been running max (44 I think) since new. 18000 kms on the clock, 4000 of that was towing. There is no indication of uneven tire wear at all. I guess this balances out the 1 that sid there was.

More pressure in the tire also helps increase fuel economy.

ftrucktough

You must not have E-rated tire though, otherwise your max pressure would be 80psi...

baldy500

no more than what it says on the door jam for the tires. that is what the truck is designed for then adjust accordingly for the load on the back of the truck if loaded in the bed or a trailer. chalk the tread area of the tire and run the road. this will indicate the contact patch on the tire and will tell if it is under/over inflated. that is the important part on the inflation pressure. remember this is the only part of the truck that touches the road and you want more than less!

Platinum_Sean

OEM Pirelli 275 55 20. Max Pressure is 44 PSI on the sidewall. P rated.

E rated would be 80 or so.

ak_cowboy

I ran 55psi on my E rated tires, 80 was way too stiff for daily driving.

Paxford

I have a 2wd screw with 4.6L and 5.5 short bed, about 5200 lbs.

I appreciate everyone kicking the ball around, but we haven't found the pot o' gold daily driving psi for this tire just yet. Anyone have 30K miles or more on an E rated BFG AT KO? How's the wear, is it even? What psi did you run at to achieve even wear? And did you run this psi since the tires were new or did you have to adjust it later in life to compensate of uneven wear?

Maybe chalking the tires is the only option if nobody has that high of mileage on their tires yet.