Tire Pressure
Thread Starter
|
Senior User
Joined: Feb 2007
Posts: 194
Likes: 1
From: Cheyenne, Wyoming
Tire Pressure
I accidentally posted this in the wrong forum, so I'm reposting here. Maybe you all can help.
I am totally confused with my tires. I am running Michelin LT235/85 R16. The tires themselves say if running single or dual, pressure 80PSI. I would have thought that this is the MAX.
Yet, on the sticker in the door jam, it says FRONT 55 and REAR 80. Do they really want me running the rears at 80psi.
I will give up on comfort for the BEST gas mileage and longest life of the tires. Trying to figure out the proper balance here. Here are the stats on the truck. Any suggestions? Thx... Mike.....
1994 FORD F250
Standard Cab
7.5l 460 engine
Limited Slip Differential
4 speed E4OD auto
55,500 original miles. (Just bought it)
Michelin LT235/85R16
Thanks again. Later.... Mike....
I am totally confused with my tires. I am running Michelin LT235/85 R16. The tires themselves say if running single or dual, pressure 80PSI. I would have thought that this is the MAX.
Yet, on the sticker in the door jam, it says FRONT 55 and REAR 80. Do they really want me running the rears at 80psi.
I will give up on comfort for the BEST gas mileage and longest life of the tires. Trying to figure out the proper balance here. Here are the stats on the truck. Any suggestions? Thx... Mike.....
1994 FORD F250
Standard Cab
7.5l 460 engine
Limited Slip Differential
4 speed E4OD auto
55,500 original miles. (Just bought it)
Michelin LT235/85R16
Thanks again. Later.... Mike....
FTE Legend
Joined: Jun 2006
Posts: 31,930
Likes: 1,499
From: Ottawa, Ontario
Yes, that's the maximum tire pressure for a full load. You don't need that if you drive it around empty most of the time, 35-50psi should be just fine. Over inflated is just as bad as under inflated, it will result in uneven tire wear and decreased traction.
Posting Guru
Joined: Jun 2002
Posts: 1,692
Likes: 1
I run 52psi on P285/70R16's. Fill 'em up to the rec'd 65psi when I take on a 1 ton or more load in the back.
52psi makes for a softer ride and don't see any difference in the gas mileage though suppose there is, like 1/10th of a mpg or something.
(The biggest mpg difference for me was trading all-season treads for knobbier traction tires [not mudders]; lost 1 mpg.)
52psi makes for a softer ride and don't see any difference in the gas mileage though suppose there is, like 1/10th of a mpg or something.
(The biggest mpg difference for me was trading all-season treads for knobbier traction tires [not mudders]; lost 1 mpg.)
Thread Starter
|
Senior User
Joined: Feb 2007
Posts: 194
Likes: 1
From: Cheyenne, Wyoming
So, if the tires only show max of 80psi and the door jam sticker says 55 front and 80 rear, would it be safe to just do 55psi on all 4 unless I'm carrying a load?
Like I said, I want to make the tires last, they are relatively new. I also don't want to lose any significant mileage. The ride is third on my priority. Thx,,, Mike,,,,
Like I said, I want to make the tires last, they are relatively new. I also don't want to lose any significant mileage. The ride is third on my priority. Thx,,, Mike,,,,
i ain't rite
Joined: Mar 2005
Posts: 65,448
Likes: 5,518
From: Marlboro Mental Hospital.
get a large piece of chalk, and rub it over the full width of a tire. then drive the truck forward and back a few times. look at the chalk. adjust the air pressure till you wear all the chalk off.
on my 88 diesel, i have to run 65 lbs in the front for full contact, but only 25 lbs in the rear when empty.
on my 88 diesel, i have to run 65 lbs in the front for full contact, but only 25 lbs in the rear when empty.
Thread Starter
|
Senior User
Joined: Feb 2007
Posts: 194
Likes: 1
From: Cheyenne, Wyoming
Trending Topics
Posting Guru
Joined: Jun 2002
Posts: 1,692
Likes: 1
Originally Posted by christcorp
So, if the tires only show max of 80psi and the door jam sticker says 55 front and 80 rear, would it be safe to just do 55psi on all 4 unless I'm carrying a load?
Like I said, I want to make the tires last, they are relatively new. I also don't want to lose any significant mileage. The ride is third on my priority. Thx,,, Mike,,,,
Like I said, I want to make the tires last, they are relatively new. I also don't want to lose any significant mileage. The ride is third on my priority. Thx,,, Mike,,,,
Then inflate to 80psi if carrying a heavy load.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
