Tire Pressure
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Junior Member
Joined: Feb 2008
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Tire Pressure
I recently bought a 2002 F150 and put larger tires on the truck because I use
it for hauling.The factory sticker on the inside of the door says to use 32 psi
on the tires.I'm assuming this is for the factory stock tires.I went to Costco
and they are telling me that I should use 32 psi on my 245X75X16 tires.
They told me it doesn't matter what size the tires are,the correct psi is
on the sticker.This doesn't seem right to me.
Does anyone know about correct tire pressure,or where I can find this info?
Thanks
it for hauling.The factory sticker on the inside of the door says to use 32 psi
on the tires.I'm assuming this is for the factory stock tires.I went to Costco
and they are telling me that I should use 32 psi on my 245X75X16 tires.
They told me it doesn't matter what size the tires are,the correct psi is
on the sticker.This doesn't seem right to me.
Does anyone know about correct tire pressure,or where I can find this info?
Thanks
Senior Member
Joined: Jul 2007
Posts: 3,805
Likes: 480
From: Cape Girardeau MO
The pressure on the tire sidewall is the maximum pressure rating. It also has a bit to do with the maximum load capability rating of the tire.
The pressure given by the OEM is the recommended pressure - sort of a 'best-fit' pressure for driving, handling, and tire life for the stated tire size.
Perhaps not a big issue - but need to be sure that the wheels are also rated for whatever pressure one chooses - particularly if one opts to go for the 80psi level. Some aftermarket wheels will have this maximum pressure stamped or cast into the wheel somewhere - factory wheels and others, who knows? But I would want a little more confidence in the wheel's capabilities before jacking the pressure up that high.
Given that you've changed tire sizes, it's reasonable to expect that this 'best-fit' pressure has also changed somewhat. One recommendation would be to start out at the OEM specifications, then have a look at the tires every 500-1000 miles to see how things are wearing, and adjust accordingly. For example, I have 31x10.50s and am currently running 32 front, 28 rear. On my Jeep CJ5 with 33x12.50s, I run 20psi front, 17psi rear for best wear - far from the rating stamped on the tire.
The pressure given by the OEM is the recommended pressure - sort of a 'best-fit' pressure for driving, handling, and tire life for the stated tire size.
Perhaps not a big issue - but need to be sure that the wheels are also rated for whatever pressure one chooses - particularly if one opts to go for the 80psi level. Some aftermarket wheels will have this maximum pressure stamped or cast into the wheel somewhere - factory wheels and others, who knows? But I would want a little more confidence in the wheel's capabilities before jacking the pressure up that high.
Given that you've changed tire sizes, it's reasonable to expect that this 'best-fit' pressure has also changed somewhat. One recommendation would be to start out at the OEM specifications, then have a look at the tires every 500-1000 miles to see how things are wearing, and adjust accordingly. For example, I have 31x10.50s and am currently running 32 front, 28 rear. On my Jeep CJ5 with 33x12.50s, I run 20psi front, 17psi rear for best wear - far from the rating stamped on the tire.
Senior Member
Joined: Nov 2008
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I recently bought a 2002 F150 and put larger tires on the truck because I use
it for hauling.The factory sticker on the inside of the door says to use 32 psi
on the tires.I'm assuming this is for the factory stock tires.I went to Costco
and they are telling me that I should use 32 psi on my 245X75X16 tires.
They told me it doesn't matter what size the tires are,the correct psi is
on the sticker.This doesn't seem right to me.
Does anyone know about correct tire pressure,or where I can find this info?
Thanks
it for hauling.The factory sticker on the inside of the door says to use 32 psi
on the tires.I'm assuming this is for the factory stock tires.I went to Costco
and they are telling me that I should use 32 psi on my 245X75X16 tires.
They told me it doesn't matter what size the tires are,the correct psi is
on the sticker.This doesn't seem right to me.
Does anyone know about correct tire pressure,or where I can find this info?
Thanks
5 Year Member
Joined: Oct 2008
Posts: 8,279
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From: Lockport, Louisiana
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Senior Member
Joined: Jan 2008
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From: Pablo MT
Google Goodyear, there is a link to tire pressure and loads for the pressure. This allows you to determine the proper tire pressure, for LT tires the minimum recommended pressure is 30 psi though.