Tire Pressure

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Jan 22, 2010 | 10:58 AM

Icefan71

Thread Starter

Elder User

Joined: Feb 2005

Posts: 630

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From: Central PA

Tire Pressure

I have a 98 EB 5.4 4x4. The data plate inside the door says to keep the rear tires inflated to 35 psi and the front tires to 30 psi. I was wondering why the 5 psi difference? The only reason I can think of is maybe slightly lower pressure will give you better traction. But that is just an uneducated guess. I've had the truck for about 5 years and I just noticed this info.

Jan 22, 2010 | 05:34 PM

alloro

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Joined: Apr 2008

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From: 0,0,1

Quote:

Originally Posted by Icefan71

rear tires inflated to 35 psi and the front tires to 30 psi. I was wondering why the 5 psi difference?

Potential cargo weight and weight from towing require more PSI in the rear tires. Technically you could run 30 PSI all the way around and then add the extra 5 PSI when needed. Most people don't want to deal with changing the PSI all the time, so 35 PSI is put in and it's left alone.

Jan 22, 2010 | 10:16 PM

powerram50

Senior User

Joined: Jul 2003

Posts: 108

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From: portland,or

i know the engineers figured everything out but i always felt 30 was a little low.i always preferred 35 all the way around.it seems a little firmer in corners.when towing heavy loads i bump all the tires to 40 to 45 but i also have lt tires.