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Sdgood1
09-12-2019, 09:59 AM
Hi all, just another tire pressure question. On your TV (mines an f250) What pressure do you use?? The max tire pressure, or what is recommended on the door frame? Tires are 80 psi E rated, but the tire inflation sticker says 65 psi?
I've always ran them for whatever load I have. Empty 65psi, loaded with fifth wheel and incidentals run them up to 75 to 80. I have NEVER had a problem with this theory of mine. :popcorn::popcorn: WE really don't need to get to deep in this, just curious as to what you do!

Texan
09-12-2019, 10:11 AM
I would run the rears at max pressure when loaded. When towing I would also inflate the front to max pressure because you will most likely have some weight transfer to the front and the tires will run cooler at max pressure. I have a dually and my front weighs the same loaded or empty per cat scales which is over 5500 pounds.

mlh
09-12-2019, 10:18 AM
I have an F250 with 20 inch wheels. I run mine at 80 pounds when pulling my camper. I see no reason not to and plenty reasons to.
Lynwood

Sdgood1
09-12-2019, 10:28 AM
Thanx , Texan, and MLH Thats why I do what I do!!

1retired06
09-12-2019, 10:39 AM
80 pounds rear, 75 pounds front, 110 fiver tires

jcurtis934
09-12-2019, 11:57 AM
Door sticker pressure is for rated loads and I run at 65, but think this is one of those "you gotta feel good" things and if sticker pressure or max sidewall pressure...do your thing no issue.

CalandLinda
09-12-2019, 04:25 PM
Hi all, just another tire pressure question. On your TV (mines an f250) What pressure do you use?? The max tire pressure, or what is recommended on the door frame? Tires are 80 psi E rated, but the tire inflation sticker says 65 psi?
I've always ran them for whatever load I have. Empty 65psi, loaded with fifth wheel and incidentals run them up to 75 to 80. I have NEVER had a problem with this theory of mine. :popcorn::popcorn: WE really don't need to get to deep in this, just curious as to what you do!

For your truck, the Original Equipment tires (OE) must have a load capacity equal to the GAWR they are fitted to. The truck’s building instructions require the manufacturer to provide a percentage of load capacity reserves. Look at tour truck’s certification label and you will see that the GAWRs when totaled have more load capacity than the vehicle GVWR, that’s load capacity reserves. Find an inflation chart for your tires and add the load capacity they are providing at the vehicle manufacturer’s recommended cold inflation pressures. If higher than the GAWRs load capacities, that’s load capacity reserves. Unless your truck has a second tire inflation pressure placard for heavy loads – up to GVWR – the certified recommended inflation pressures are good for all load conditions up the vehicle max which is GVWR.

The load inflation chart for your tires will show the load capacity of those tires at vehicle manufacturer recommended cold inflation. Because they are Passenger tires the vehicle manufacturer has already made the mandatory deduction for Passenger tires when fitted to a pick-up truck.

Logic: The vehicle manufacturer’s instruction to provide a percentage of load capacity reserves is also a tire industry standard (USTMSA). Those standards I’m using are from and for the consumer automotive industry and are not to be confused with tire inflation regulations from the trucking industry (FMCSA), one is not applicable to the other.

Inflating to the load carried defeats the advantage of having load capacity reserves.

Tire industry standards allow optional tire inflations from what has been recommended by the vehicle manufacturer all the way to the inflation pressure shown on the tire sidewall which will provide maximum load capacity from the tire.

The tire industry also says to NEVER use inflation pressures less than what has been recommended on the vehicle certification label.

meg38
10-25-2019, 02:32 PM
I have a 2019 F-250. I've always set my tire pressure to the sticker on the door frame 60 front & 65 rear. This was towing a 9K travel trailer. My tires also say 80psi max on the side wall. Picking up a new 5er Saturday & was wondering if I should set them to 80psi max load. After reading CalandLinda's post I'm thinking I should keep it at the door sticker pressures.

kjmcdowell77
10-26-2019, 05:43 AM
I have run 60 front and 75 rear in my Silverado 2500 Duramax. That is what is recommended for the truck and I seem to pull my HC 321MK with no issues whatsoever.