Looked on here looked on the web. Tire pressure recommendations all over the place. If you have had your BFG's in the stated size for a while what psi are you finding is best for even wear?
Owners of 275/70/18 BFG AT/KO's what tire pressure for even wear?
- Thread starter SWUtah
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I've run them from 35-50psi. Oddly, I can't feel a difference. And, didn't see any MPG variance either. So, it's all about the wear. 40psi is a good place to start. I say "start" because (and probably why you see the numbers all over the place in your research) it depends on the weight of the truck. Full tank, third row, 'fridge, bumpers, racks...
Do the chalk test. Just put a big old fat line across the tread, drive 1/4 mile in a straight line, inspect your chalk line. Others may weigh (pun intended) on this test - it's been a while since I did it (and research the proper way to do it).
Do the chalk test. Just put a big old fat line across the tread, drive 1/4 mile in a straight line, inspect your chalk line. Others may weigh (pun intended) on this test - it's been a while since I did it (and research the proper way to do it).
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Thanks I just took them up to 40 psi. My truck is light no 3rd row or after market bumpers. Just OME 2" lift and Slee step sliders. The last time I had the BFG AT/KO's was on my 1995 FZJ80, at 60k miles they still looked new.
Got my tires on Saturday. I asked the installer and he said 50! So Im running them that way for now. I can feel every bump and crack tho. No more plush ride compared to my 295/75/16. Then again I like the zero roll or plowing feeling at freeway speeds a mid-corner. Only issue I have is a slight vibration at 35-40mph. I have experienced this on heavy bikes (BMW GS Adventure KTM 1190 etc) with knobbies. Its all about finding the correct pressure for the suspension. So im not worried, she feels smooth otherwise. I wonder of I should run different pressures upfront (heavier) than the rear? Most of my cars (sport) recommend that setup/
@Manhattan I like the idea of the chalk.....gotta give it a try.
@Manhattan I like the idea of the chalk.....gotta give it a try.
Same here. Usually closer to 35 since that's quicker when airing up. Perhaps not optimal, but wear seems pretty even with regular 5-tire rotations at ~20K miles.
It's not so much the tire, but what the vehicle requires, all other things equal. Your truck's suspension has been modified and the tire is bigger than OEM. I would adjust it to where you like it to ride, 10psi difference in a good range won't cause any material difference in wear. On the other end of the spectrum, cold 50psi or 25psi may affect long term wear.
My personal preference for truck tires, on road, is cold 35-40 PSI. I don't see any gain going above 40psi. In summer, daytime temps shoot up 30 degrees, plus the heating of the tire on road. In winter, hopefully my tires won't go below 35 PSI.
My personal preference for truck tires, on road, is cold 35-40 PSI. I don't see any gain going above 40psi. In summer, daytime temps shoot up 30 degrees, plus the heating of the tire on road. In winter, hopefully my tires won't go below 35 PSI.
I'm running 35psi cold on my 285/70R17 BFG Goodrich A/T
This thread reminded me of this one - 100 Series Correct Tire Pressure - very confused.
NMuzj100 gave some great advice:
NMuzj100 gave some great advice:
According to this table:
On Page 27, for the "LT275/70R18 single" row, at 35psi, each tire can hold 2270 lb weight. It sounds like as long as the tire pressure is above 35psi, it's within safe spec for our 100 series? No Hundy will exceed 2270x4 lb. So it's just a matter of comfort vs. gas mileage/wear?
On Page 27, for the "LT275/70R18 single" row, at 35psi, each tire can hold 2270 lb weight. It sounds like as long as the tire pressure is above 35psi, it's within safe spec for our 100 series? No Hundy will exceed 2270x4 lb. So it's just a matter of comfort vs. gas mileage/wear?