What Does Psi Cold Mean?
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Senior User
Joined: Sep 2006
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From: Connecticut
What Does Psi Cold Mean?
I just put my stock studded snow tires on my 95 f 250 4x4 pickup for the winter and i noticed it says 80 psi cold max..Im guessing the max amount of air i can put in is 80 psi but why do they say on the tire 80 psi max cold?what is the cold part all about?anyone know?
Postmaster
Joined: Apr 2006
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From: Neptune Beach, FL
As tires get used, they heat and air expands.. Generally that increase is about 10psi for every X of Temperature.. For instance my Toyo runs 45psi all around.. When I get going and moving, my tire temp gets to 100F and my pressure goes to 54psi.. Monitor it with a Hella TC-400 TPMS System..
So the Cold part is referring to the PSI of a Tire that hasn't been moved.. It's a pita to get it right because you heat the tire up going to an air station..
So the Cold part is referring to the PSI of a Tire that hasn't been moved.. It's a pita to get it right because you heat the tire up going to an air station..
Cargo Master
Joined: Aug 2004
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From: Lynnwood, WA
You're not exactly safe (less traction with greatly overinflated tires), and you'll probably have a bone jarring ride, too. Usually there's a sticker around the driver side door, and that has the manufacturer's recommendation -- normally that's the max you want in your tires, though for an empty truck you don't need that much.
Postmaster
Joined: Apr 2006
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From: Neptune Beach, FL
Originally Posted by aurgathor
You're not exactly safe (less traction with greatly overinflated tires), and you'll probably have a bone jarring ride, too. Usually there's a sticker around the driver side door, and that has the manufacturer's recommendation -- normally that's the max you want in your tires, though for an empty truck you don't need that much.
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Postmaster
Joined: Apr 2006
Posts: 3,294
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From: Neptune Beach, FL
Originally Posted by hatchet
thanks for the info..I dont really mind a hard ride though i like a truck to drive like a truck and not a car.thanks again.
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Cargo Master
Joined: Aug 2004
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From: Lynnwood, WA
Originally Posted by Storm
Your talking bout Stock tires... He just upgraded to Studded Snow tires.. So the door sticker means jack to him.. He has to go by what the Tire says and then decide..
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