best tire pressure
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Posting Guru
Joined: Jul 2013
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From: Connecticut
best tire pressure
What is better when towing a 14,000 lb. 5th wheel?
A) What is posted on the door.
B) 80psi in all 4 tires. (max. psi on tire)
C) other ?
Driving: 2011 F250 extended cab, 6.7 diesel, short bead, Reeves in bed 16k hitch, with rear air bags.
A) What is posted on the door.
B) 80psi in all 4 tires. (max. psi on tire)
C) other ?
Driving: 2011 F250 extended cab, 6.7 diesel, short bead, Reeves in bed 16k hitch, with rear air bags.
Posting Guru
Joined: Dec 2015
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I am going with the door label. That fiver is probably not adding any weight to your front tires which can be confirmed at the CAT scales. The 65/80 door label is for maximum load. With my 10K fiver, I tow at 62/72 since my pin weight is about 1900 lbs and I'm rated for over 3000 lbs. If not towing for a while, I run 55/60 for comfort and tire wear.
Lead Driver
Joined: Jan 2002
Posts: 8,653
Likes: 4,737
From: Itinerant
Air pressure in tires will always bring different answers from the fte crowd we all have our own preferences. For instance if that was my truck I would have 65psi all the way around when empty and maybe kick up the rears to 70-75psi depending on looks and actual scale weight to see how much was being carried on the rears.
I do have 2012 just like yours except it gas engine 65psi is daily travel, when carrying at limits (scrap yard runs) 80psi.
My 2016 dually pulling 15.5k 5th wheel with a pin weight of 2,720# fronts are 65psi and the rears 70psi, fyi.
I do have 2012 just like yours except it gas engine 65psi is daily travel, when carrying at limits (scrap yard runs) 80psi.
My 2016 dually pulling 15.5k 5th wheel with a pin weight of 2,720# fronts are 65psi and the rears 70psi, fyi.
Senior User
Joined: Aug 2015
Posts: 319
Likes: 1
From: NKY
Here's the link to an earlier discussion on this. There will never be a definitive answer, but some good recommendations.
https://www.ford-trucks.com/forums/1...n-long-tt.html
https://www.ford-trucks.com/forums/1...n-long-tt.html
Logistics Pro
Joined: Aug 2006
Posts: 4,477
Likes: 4,069
From: Raceland, La.
I'm running 70 in the front and 65 in the rear on my dually. A lot more stable then when we were towing with my son in laws F-250. With low winds I cruise at about 65mph and if windy back it down to 60-62mph. Real stable even when getting passed by semi's pulling 53' vans. Normal weight I tow is in the 14K pound range.
Senior User
Joined: Aug 2015
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From: NKY
Curious, why not run 70 in all?
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Logistics Pro
Joined: Aug 2006
Posts: 4,477
Likes: 4,069
From: Raceland, La.
Door jamb recommends the 70 front and 65 rears...I carry a compressor with me and can air up the rears more if I need to. Rides good and tire wear is nill at 4K miles. Decent fuel mileage for everyday use running this psi so why change? My trailer can gross out at over 16K miles but seldom load it to the max.
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Mountain Pass
Joined: Nov 2005
Posts: 162
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From: Las Cruces, NM
If you have a dually, you don't want the rear tires to touch or rub. I had a dually once and went from a 5th wheel with a 2500# pin weight to one that had a 3400# pin weight. I had been running 65psi in the rears and had a good ride. The new 5th wheel caused the tires to rub while bouncing down the road and created a huge blister on one of the rear tires (inside of the outside tire) within 700 miles. From then on, I ran 80psi in the rears with the trailer attached. Cost me a set of tires.
Tuned
Joined: Jul 2017
Posts: 316
Likes: 13
From: Wautoma, WI
80psi all the way around in the summer while I'm towing a lot. I don't have time to be going up and down with the pressure every other day. In the winter when the majority of my load is my family and windmill fuel, I'll run 65 in the front and 60 in the rear. I'm a drw.
Go Bills !
Joined: Jan 2008
Posts: 2,778
Likes: 65
From: Buffalo, NY
I am going with the door label. That fiver is probably not adding any weight to your front tires which can be confirmed at the CAT scales. The 65/80 door label is for maximum load. With my 10K fiver, I tow at 62/72 since my pin weight is about 1900 lbs and I'm rated for over 3000 lbs. If not towing for a while, I run 55/60 for comfort and tire wear.
Same here.
65/80. I keep The rv at 70
60 all 4 when not towing for a while.
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