Tire Pressure Question
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Tire Pressure Question
I have BFG All Terrains 285 75 16 load range E on my 2000 x V-10 4wd
Door says 45 PSI front 55 PSI rear.
Tire says max is 80 PSI.
What tire pressures are you guys running or recommend?
D.
Door says 45 PSI front 55 PSI rear.
Tire says max is 80 PSI.
What tire pressures are you guys running or recommend?
D.
Hotshot
Joined: Jul 2008
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From: N.GA Mountains
The door is irrelavent, since you have completely different tires than those #'s are for...
I adjust my tire pressures according to the wear pattern - too much air wears the middle, too little, the edges. I also tow HEAVY, so will run the rears at max psi for the tire (80psi for load range E).
My X w/same size and load rating tires likes 70psi all the way around...
I adjust my tire pressures according to the wear pattern - too much air wears the middle, too little, the edges. I also tow HEAVY, so will run the rears at max psi for the tire (80psi for load range E).
My X w/same size and load rating tires likes 70psi all the way around...
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Well, the size is not that much different 265 vs. 285. The big thing is the sticker has load range D on them. Does yours show range D or E.
I put 55 all the way around in them to see how it goes. That might be a tad light considering how much the ole X weighs.
D.
I put 55 all the way around in them to see how it goes. That might be a tad light considering how much the ole X weighs.
D.
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here is a page that tells you the best way to get your ideal pressures: Tire Pressure Checker: Righting the Pressure in Your New Tires
Hotshot
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From: N.GA Mountains
I don't change the front psi. Higher psi tends to reduce traction and make the ride harsher, so the 'right' pressure is best. When I have 1000+ lbs of tounge weight from the trailer, traction is not an issue and the stiffer sidewalls make for a less squishy ride. Some run max psi all around all the time for better MPG, but I can't stand the side effects and likely the 'savings' are eaten up by increased tire wear... 
Logistics Pro
Joined: Jan 2011
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From: Ohio
I prefer 50/55 not towing and bump it up to 55/65 towing my 7000 lb trailer.
Here's an inflation chart. http://www.goodyear.com/truck/pdf/da...dInflation.pdf
50 PSI in a stock tire size gives you 2470 load capacity. 65 gives you 3000 lbs. My truck weighs about 3500 front and 4000 rear by itself. 3500 front and about 5000 in the back towing. I'm sure a diesel or 4WD would weigh a bit more, but not THAT much more. At any rate, those pressures still allow a significant extra margin.
I don't see any safety reason to run 80 PSI, but it may be a personal preference thing. I don't like the ride as it is when I unhook the trailer, I expect 80 PSI would really be stiff.
Here's an inflation chart. http://www.goodyear.com/truck/pdf/da...dInflation.pdf
50 PSI in a stock tire size gives you 2470 load capacity. 65 gives you 3000 lbs. My truck weighs about 3500 front and 4000 rear by itself. 3500 front and about 5000 in the back towing. I'm sure a diesel or 4WD would weigh a bit more, but not THAT much more. At any rate, those pressures still allow a significant extra margin.
I don't see any safety reason to run 80 PSI, but it may be a personal preference thing. I don't like the ride as it is when I unhook the trailer, I expect 80 PSI would really be stiff.
Hotshot
Joined: Jul 2008
Posts: 12,782
Likes: 2,142
From: N.GA Mountains
I prefer 50/55 not towing and bump it up to 55/65 towing my 7000 lb trailer.
Here's an inflation chart. http://www.goodyear.com/truck/pdf/da...dInflation.pdf
50 PSI in a stock tire size gives you 2470 load capacity. 65 gives you 3000 lbs. My truck weighs about 3500 front and 4000 rear by itself. 3500 front and about 5000 in the back towing. I'm sure a diesel or 4WD would weigh a bit more, but not THAT much more. At any rate, those pressures still allow a significant extra margin.
I don't see any safety reason to run 80 PSI, but it may be a personal preference thing. I don't like the ride as it is when I unhook the trailer, I expect 80 PSI would really be stiff.
Here's an inflation chart. http://www.goodyear.com/truck/pdf/da...dInflation.pdf
50 PSI in a stock tire size gives you 2470 load capacity. 65 gives you 3000 lbs. My truck weighs about 3500 front and 4000 rear by itself. 3500 front and about 5000 in the back towing. I'm sure a diesel or 4WD would weigh a bit more, but not THAT much more. At any rate, those pressures still allow a significant extra margin.
I don't see any safety reason to run 80 PSI, but it may be a personal preference thing. I don't like the ride as it is when I unhook the trailer, I expect 80 PSI would really be stiff.
Fwiw, my front axle is over 4000 lbs and rear is about 5000 lbs with a 7.3 and both tanks full of fuel. I'm over 9k lbs with passengers and gear and the Toy Hauler tips 12k lbs pretty easliy...
Logistics Pro
Joined: Jan 2011
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From: Ohio
By stock tire size, I was referring to LT265/75 16 E. 50 PSI in that tire will give you an axle capacity of 4940. (2470 each tire) 65 PSI will give you 6000 lbs capacity per axle, well above what most people would be needing most of the time. Those numbers come from the above referenced chart. Tire brand doesn't matter more than a few lbs either way.
To the OP's question, I like to run less pressure than others. I think anything over 50 PSI in those tires is enough from a load standpoint, then it becomes a question of how it rides and drives to you and how the tires wear.
To the OP's question, I like to run less pressure than others. I think anything over 50 PSI in those tires is enough from a load standpoint, then it becomes a question of how it rides and drives to you and how the tires wear.