Tire Pressure
#1
Tire Pressure
Now I have done a bunch of searching and it seems that not too many people can agree on what pressure to keep their tires. I have BFG AT ko's and they are 265/75/16. Now I have always heard that you should use the tire pressure that is prescribed by the door sticker, but I cant seem to get a consensus on if that is right or not since the tires are larger than stock. Some people say 50psi, some people say 40 and some say 30. I am just wanting to know if some one actually knows.
Also I was wondering what you guys air your tires down to when you go wheeling?
Also I was wondering what you guys air your tires down to when you go wheeling?
#4
Air pressure for your tires are determined BY THE TIRE MANUFACTURER. Not the vehicle manufacturer. Door sticker means nothing if you've got not-stock tires on your truck. Look at your tire. It'll give you a Max Cold Psi to fill them to.
My current tires tell me a max cold psi of inflation is 35. I run 35 in the front, and about 33 or 32 in the rear.
I air down to approx 15, and sometimes 10psi. Snow wheelin' FTW!
My current tires tell me a max cold psi of inflation is 35. I run 35 in the front, and about 33 or 32 in the rear.
I air down to approx 15, and sometimes 10psi. Snow wheelin' FTW!
#6
I think generally most people run will run 30-40 in similar sized tires on rangers.
I always got the best wear with 30-35. That is with 265/75/16, and 31x10.50/15. Actually, same with 33x12.50's on 15x8's.
If you are real concerned about it, put them all at 30, and use the chalk line trick. Draw a line across the tread of each tire and drive a short period. If the inside wears out first, less air. If the outside wears first, more air.
I'm betting you'll end up around 35 front, 30 in the rear.
Off road I always aired to 10-20 psi, depending on what I was doing. If I decided I was going to drive home without airing up, 20.
Deep snow or sand, closer to 10. Rocks/sticks and things that are more likely to puncture the sidewall, 15ish to keep a little more ridigity. That's just what worked for me.
I always got the best wear with 30-35. That is with 265/75/16, and 31x10.50/15. Actually, same with 33x12.50's on 15x8's.
If you are real concerned about it, put them all at 30, and use the chalk line trick. Draw a line across the tread of each tire and drive a short period. If the inside wears out first, less air. If the outside wears first, more air.
I'm betting you'll end up around 35 front, 30 in the rear.
Off road I always aired to 10-20 psi, depending on what I was doing. If I decided I was going to drive home without airing up, 20.
Deep snow or sand, closer to 10. Rocks/sticks and things that are more likely to puncture the sidewall, 15ish to keep a little more ridigity. That's just what worked for me.
#11
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i get the pleasure of driving over a dusty driveway at work everyday. you can see exactly what touches the ground and what doesnt. IMO the best way. lol
#12
#15
#17
correct, but like the tire, it depends on application also. think about this....265/75r16 load range C max of 50 psi on a ranger and then on an f150. yes its load rated properly. lets say on the f150 at 35 psi works perfect. however, 35 psi on the ranger would probably cause it to cup a little bit and wear a bit funky because the ranger is no where near as heavy. so it depends on everything...
i get the pleasure of driving over a dusty driveway at work everyday. you can see exactly what touches the ground and what doesnt. IMO the best way. lol
i get the pleasure of driving over a dusty driveway at work everyday. you can see exactly what touches the ground and what doesnt. IMO the best way. lol
#18
I actually get a pretty good look by pulling in to the garage when it's wet outside.
But it's not perfect anyway. The weight on the front end (also 12.5" tires on 7.5" wheels) causes the front to wear on the outsides a little more from turning, so after watching how the tires are scrubbed in a few thousand miles I made more adjustment.
But it's not perfect anyway. The weight on the front end (also 12.5" tires on 7.5" wheels) causes the front to wear on the outsides a little more from turning, so after watching how the tires are scrubbed in a few thousand miles I made more adjustment.
#21
#23
#24
Air pressure for your tires are determined BY THE TIRE MANUFACTURER. Not the vehicle manufacturer. Door sticker means nothing if you've got not-stock tires on your truck. Look at your tire. It'll give you a Max Cold Psi to fill them to.
My current tires tell me a max cold psi of inflation is 35. I run 35 in the front, and about 33 or 32 in the rear.
My current tires tell me a max cold psi of inflation is 35. I run 35 in the front, and about 33 or 32 in the rear.
All the tire says is the MAX pressure, it does not tell you the ideal pressure.
The ideal pressure will get you the best wear for the tires. The ideal pressure is what is listed on the door frame. I run my tires between 30 and 35. My door sticker says 30. Remember your air gauge isnt really accurate. If is going to be off by a pound or two.
If you over inflate your tires you will experience cupping in the center of the tire and will wear your tires out prematurely.
Personally when I sell someone a set of BFG A/T's I tell them for the best wear keep them at the manufacturers recommendation, if you want to keep the sidewalls nice and sharp keep them at 50 PSI (unless the man. calls for a higher pressure).
For a quick reference:
Car tires: MAX 44PSI
Load Range C: MAX 35PSI
Load Range D: MAX 50PSI
Load Range E: MAX 80PSI
#25