f150country

Hey fellas
Im trying to see what a good tire pressure to run 35x12.50R18 Cooper STT's for my future reference and approximately how many miles i can get out of them
Thanks
F150Country

TommySD

I got about 20k out of mine running 50 PSI. This was also on a F250 7.3L.

3point5

Your tire pressure should be at whatever the manufacturer recommends...

jerrybizzle

For stock tire size and load range, yes, but since bigger tires and heavier load range, this will not be the case. This is assuming u mean the 35 psi that Ford recommends. The tire recommendations are max psi, for max load and not always best wear.

TommySD

I used to. My mechanic suggested a higher tire pressure for a larger ply tire. My F250 recommended 45psi and I run 50. My F150 says 35 but I'm running 45.

04xlf150

I was running mine at 35psi for about a year bc that's the psi that the tire shop I got them from set them at. I recently put them to 40 psi and I like it better at 40. It seems to ride smoother and just better all around. I've got about 12000 miles on mine and they still have about 80-85% tread left. The place I got them from said that there manager runs them on his f150 and has had them on there for about 55000 miles and they're still lookin decent.

DangFoo

I have ProComp tires, which are essentially Coopers and my tires are the same size (35 x 12.5 x 18). I've always run between 35psi to 40psi on my truck and get between 40K miles to 50K miles from a Mud tread. I'm at 40K miles on these ProComps with 15%-20% tread remaining and will be buying another set of Cooper or going over to a Good Year Duratrac for even better snow traction.

f150country

That"s awesome man just the advice I was looking for much appreciated bud
When i get a chance to I'm gonna try and get some pics of my truck up here.

f150country

Sweet man I'm running ATZ's right now from Mickey Thompson and they run good but there 13.50s and I'm looking to get 12.50s next time

f150country

For everybody I will have to say that it definitely is tricky trying to find the right pressure to run a tire for sure My ATZ's that I'm currently running on are set at 40-42 psi and that's what they were set at when i bought the truck used from one of my friends