Tire pressures???
Thread Starter
|
5th Wheeling
Joined: Jan 2021
Posts: 37
Likes: 4
Tire pressures???
New here but whenever google something this forum always pops up so figured why not just join.
So I have a 2015 F350 SRW and trying to figure out best tire psi to run for best quality of ride.
Just recently got 35x12.5x18 Toyo AT3 with an “F” rating so I can run up to 80psi if needed. I would like to know what recommendations you have for an F rated tire unloaded? I would prefer not to have to stare at the tire light all the time but if need be I might be able to over look that.
THANKS
So I have a 2015 F350 SRW and trying to figure out best tire psi to run for best quality of ride.
Just recently got 35x12.5x18 Toyo AT3 with an “F” rating so I can run up to 80psi if needed. I would like to know what recommendations you have for an F rated tire unloaded? I would prefer not to have to stare at the tire light all the time but if need be I might be able to over look that.
THANKS
Tuned
Joined: Feb 2017
Posts: 257
Likes: 6
Are you sure it's load range F? LR F tires are rated to 95 psi. Load range E tires are rated plenty high enough for the GAWR of these axles.
My door tag says 55 psi front 70 psi rear. I run 60 psi front 70 psi rear based on my tire wear patterns in the front.
My door tag says 55 psi front 70 psi rear. I run 60 psi front 70 psi rear based on my tire wear patterns in the front.
Thread Starter
|
5th Wheeling
Joined: Jan 2021
Posts: 37
Likes: 4
Positive they are load range F. Just got them week or so ago. Tire size has something to do with it too. Certain brands u can’t get 80 psi rating in a 35x12.5 but u can get 80 psi rating In a 285/75 or 295/70
Postmaster
Joined: Nov 2015
Posts: 4,807
Likes: 125
From: Colorado Springs
Welcome to the Forum. 
If you truly bought F rated tires prepare for a ROUGH ride, as mentioned E rated tires are more than enough tire for these trucks. Go to a parking lot, bring some sidewalk chalk, run several perpendicular lines across ALL the tires, then drive STRAIGHT for about a block. Check the chalk wear pattern. If the chalk wears off the center your pressure is too high as an example.
You want to play with the pressure until you get an even wear pattern across the tread of the tires. I seriously suggest switching the tires to Load E before you put any miles on them.
‘I run 75psi on the front and 55 in the Duals on the back...
If you truly bought F rated tires prepare for a ROUGH ride, as mentioned E rated tires are more than enough tire for these trucks. Go to a parking lot, bring some sidewalk chalk, run several perpendicular lines across ALL the tires, then drive STRAIGHT for about a block. Check the chalk wear pattern. If the chalk wears off the center your pressure is too high as an example.
You want to play with the pressure until you get an even wear pattern across the tread of the tires. I seriously suggest switching the tires to Load E before you put any miles on them.
‘I run 75psi on the front and 55 in the Duals on the back...
Thread Starter
|
5th Wheeling
Joined: Jan 2021
Posts: 37
Likes: 4
Well how do I get around that stupid tmps light? Ford calls for 80 psi in the rear and once I drop below 67 back there light comes on.
And I can’t get a Toyo AT3 in a 35x12.5 with 80 psi rating. As high as they go is 65 psi rating
And I can’t get a Toyo AT3 in a 35x12.5 with 80 psi rating. As high as they go is 65 psi rating
New User
Joined: Jan 2021
Posts: 7
Likes: 0
From: King City ON (Toronto)
OBDLink MX+ OBD2 Bluetooth Scanner for iPhone, Android, and Windows
Download Forscan onto a Windows based laptop (I'm a Mac guy and that caused me problems lol). Make adjustments (look this up on Youtube). Not hard.Trending Topics
Postmaster
Joined: Nov 2015
Posts: 4,807
Likes: 125
From: Colorado Springs
‘Well, is there a designated fuse for the TPMS? Worst case, you learn to deal with it.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
Hotshot
Joined: Jan 2010
Posts: 10,060
Likes: 491
From: Bristol, TN.
You can use a Forscan to reset your TPMS to whatever you want, you can follow this thread
https://www.ford-trucks.com/forums/1...tpms-pita.html
Personally my wife and I don't find it all that hard to ignore. Hit "OK" and it drops to the bottom right hand corner of your dash. Some folks put a piece of black tape over it so they can't see it.
Steve
https://www.ford-trucks.com/forums/1...tpms-pita.html
Personally my wife and I don't find it all that hard to ignore. Hit "OK" and it drops to the bottom right hand corner of your dash. Some folks put a piece of black tape over it so they can't see it.
Steve
Thread Starter
|
5th Wheeling
Joined: Jan 2021
Posts: 37
Likes: 4
YES!!! thanks everyone that chimed in. My F rated tires may be overkill for what I need but they ride better than the last tires I had(warrantied out). I dropped all to 65psi and definitely can tell big difference from the 80psi I had in the back. I’ll bump back up to 75-80 when I tow.
Tuned
Joined: Sep 2014
Posts: 368
Likes: 0
From: Ventura, Ca
YES!!! thanks everyone that chimed in. My F rated tires may be overkill for what I need but they ride better than the last tires I had(warrantied out). I dropped all to 65psi and definitely can tell big difference from the 80psi I had in the back. I’ll bump back up to 75-80 when I tow.
35″-37″ tires and inflate them in accordance to THEIR load curve (40-45PSI Front, 35-40PSI Rear), not the factory tire’s load curve to which most factory TPMS Systems are set.
you’ll get a much softer unloaded ride. There’s no reason to be driving around unloaded with 60+ psi in your tires.
Senior User
Joined: Feb 2020
Posts: 396
Likes: 10
From: Fort Mill SC
humm, I lowered to 65 and that made a slight difference, I'm going to have to give 50 a try, some of the roads I frequent are washboard type and I find it amazing that the road will toss and turn this block of metal all over. when I drive my jeep on the same roads I can kick back and enjoy the road instead of wondering if I'm going to be tossed off the side when driving the truck.
Hotshot
Joined: Jan 2010
Posts: 10,060
Likes: 491
From: Bristol, TN.
Yeah, bump steer, not crap. It’s real and my F350 is really good at it. It you get the tire pressure table for your tires you will find they can be really low on pressure and still be fine running empty bed! Steve
New User
Joined: Nov 2020
Posts: 23
Likes: 4
From: Orlando, FL