What tire pressure do you run?
09-13-2017, 06:28 PM
#11
Senior Member
I'm running 38-40 psi. in 275/70/18s BFGs
35psi. felt a little soft..... but I drove a SD F-250 13 yrs. prior.....
So the whole F-150 platform felt really soft and squishy to me already.
Thought I read on the forum that people were recommending 50psi in the BFGs because of the E rating.
35psi. felt a little soft..... but I drove a SD F-250 13 yrs. prior.....
So the whole F-150 platform felt really soft and squishy to me already.
Thought I read on the forum that people were recommending 50psi in the BFGs because of the E rating.
09-13-2017, 06:34 PM
#12
Super Moderator
I tried 50psi. in mine... but same thing, real rough.
09-13-2017, 11:23 PM
#13
I'm running 38-40 psi. in 275/70/18s BFGs
35psi. felt a little soft..... but I drove a SD F-250 13 yrs. prior.....
So the whole F-150 platform felt really soft and squishy to me already.
Thought I read on the forum that people were recommending 50psi in the BFGs because of the E rating, are your 17s D rated?
35psi. felt a little soft..... but I drove a SD F-250 13 yrs. prior.....
So the whole F-150 platform felt really soft and squishy to me already.
Thought I read on the forum that people were recommending 50psi in the BFGs because of the E rating, are your 17s D rated?
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Arizona Tumbleweed (11-11-2017)
09-14-2017, 12:33 AM
#15
Hi, my truck came with 18" LT tires. The door sticker says to run 40 lbs. on all four corners. My tires have a max cold inflation of 50 lbs. I run 50 lbs. in my rear tires when towing my travel trailer. 35,000 miles on original tires.
Last edited by robertsunrus; 09-14-2017 at 01:40 AM.
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Arizona Tumbleweed (11-11-2017)
09-14-2017, 01:35 AM
#16
Gone Golfin
iTrader: (3)
The sticker on the door is irrelevant if you're not running the same type of tires the truck came with.
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digitaltrucker (12-19-2017)
09-14-2017, 03:05 AM
#17
Senior Member
285/75-17E, 40 psi.
09-14-2017, 07:55 AM
#18
Is the chalk test accurate?
i can't decide what to put in my new tires. The original tires were 265/60R18 110T SL which the door jam says full to 43 psi cold. New tires are 275/55R20 117T XL.. Both have a max psi of 50. Since the new tire has sa slightly higher load rating but the same max PSI, I would think that I could run a Lower psi and still achieve the same load rating as the old tire
i can't decide what to put in my new tires. The original tires were 265/60R18 110T SL which the door jam says full to 43 psi cold. New tires are 275/55R20 117T XL.. Both have a max psi of 50. Since the new tire has sa slightly higher load rating but the same max PSI, I would think that I could run a Lower psi and still achieve the same load rating as the old tire
09-14-2017, 08:40 AM
#19
Senior Member
You're probably right in your assumption regarding the new tires running at a little less pressure (unless you're loaded/towing of course). The chalk test is THE way to determine the best tire pressure.
