Tire Pressures
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Mountain Pass
Joined: Dec 2016
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Tire Pressures
OK, first one ton truck owner.
Why are my rear tires at 80 psi? and do I have to keep them that high when empty?
I think the ride will improve with like 55 psi, but I dont want to kill the tires either. Any suggestions?
ysgi
Why are my rear tires at 80 psi? and do I have to keep them that high when empty?
I think the ride will improve with like 55 psi, but I dont want to kill the tires either. Any suggestions?
ysgi
Its Comin Right for us!
Joined: Feb 2005
Posts: 12,144
Likes: 2,631
From: GA
its a CYA thing, 80 psi in rear at or near empty will kill your tires
scroll down to page 25 of this pdf
https://toyotires-1524598101.netdna-...s_20151020.pdf
good reference to how much psi for a certain load
scroll down to page 25 of this pdf
https://toyotires-1524598101.netdna-...s_20151020.pdf
good reference to how much psi for a certain load
Hotshot
Joined: Apr 2013
Posts: 10,118
Likes: 650
From: NH
The door sticker, which on an F-350 is typically 65psi front and 80psi rear, is what the manufacturer recommends. You will get the longest tire life, best fuel economy, and highest payload capability at these pressures.
That said, you will also get the worst ride quality unladen. Plenty of members here have run lower tire pressures without issue.
F-250 trucks run less pressure because they have less payload capacity...but they may well be running the exact same tire as the 350 truck. This proves CYA's point, but it also indicates you can safely run higher pressures in a 250 for better fuel economy if you so desire.
My 2017 dually sticker states 75psi front and 65 rear.
That said, you will also get the worst ride quality unladen. Plenty of members here have run lower tire pressures without issue.
F-250 trucks run less pressure because they have less payload capacity...but they may well be running the exact same tire as the 350 truck. This proves CYA's point, but it also indicates you can safely run higher pressures in a 250 for better fuel economy if you so desire.
My 2017 dually sticker states 75psi front and 65 rear.
Its Comin Right for us!
Joined: Feb 2005
Posts: 12,144
Likes: 2,631
From: GA
Rear sustained below 65 your light goes off in a 350srw
I am currently running 65 front 55 psi cold rear in my toyos with good wear and much better ride. Changed my tpms with forscan
Havent towed heavy yet just mild hauling
I am currently running 65 front 55 psi cold rear in my toyos with good wear and much better ride. Changed my tpms with forscan
Havent towed heavy yet just mild hauling
Thread Starter
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Mountain Pass
Joined: Dec 2016
Posts: 110
Likes: 0
its a CYA thing, 80 psi in rear at or near empty will kill your tires
scroll down to page 25 of this pdf
https://toyotires-1524598101.netdna-...s_20151020.pdf
good reference to how much psi for a certain load
scroll down to page 25 of this pdf
https://toyotires-1524598101.netdna-...s_20151020.pdf
good reference to how much psi for a certain load
I have to admit that even at those pressures the ride isn't HORRIBLE, just feel it could be better - so does the Mrs.
PS - I am a Big fan of Orange as well.
-ysgi
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