Tire Presure ?
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Junior User
Joined: May 2006
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From: springstead wi
Tire Presure ?
Is there a better tire pressure for a long trip ?
My tires are rated to 44 psi . Truck is new according to the sensors there at 32 front and 31 back . Should they be around 35 psi . Will not be towing anything during the trip .
My tires are rated to 44 psi . Truck is new according to the sensors there at 32 front and 31 back . Should they be around 35 psi . Will not be towing anything during the trip .
Lead Driver
Joined: Jun 2005
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From: Calgary Canada
When unloaded, you are inflating just enough to get even wear and decent ride. I'm guessing those are P-metric tires, and so around 30 or 35 should be fine. Maybe put a hand on each one after your first hour to double check that you aren't building any heat.
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From: Isanti, MN
35 PSI is actually a bit high unless you're fully loaded, but you probably don't want to air down without knowing your exact weights. I'd keep them at the factory-spec pressure, but if they're a bit low you should be fine.
Tuned
Joined: Jul 2015
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From: N.W. Indiana
The PSI ranges on a P-metric tire you speak of are more for your preference up until you start loading them down with weight.
If you want low rolling resistance, better gas mileage, harsher ride, quicker handling, less tolerance to pot holes without damage, and less sway when towing, load those babies up to max pressure.
By contrast, if you want a softer ride that burns more fuel, slightly less handling yet more tolerant to an imperfect roadway while allowing more sway when towing, run em down to 30 or so psi.
Although the recommended pressure is marked on the jamb, it is a "swiss army knife" pressure that cannot possibly represent the best characteristics for all conditions. These pressures are set by engineers that are looking for a happy medium. Deviating from them a few pounds either way should not adversely affect long term wear or safety.
If you want low rolling resistance, better gas mileage, harsher ride, quicker handling, less tolerance to pot holes without damage, and less sway when towing, load those babies up to max pressure.
By contrast, if you want a softer ride that burns more fuel, slightly less handling yet more tolerant to an imperfect roadway while allowing more sway when towing, run em down to 30 or so psi.
Although the recommended pressure is marked on the jamb, it is a "swiss army knife" pressure that cannot possibly represent the best characteristics for all conditions. These pressures are set by engineers that are looking for a happy medium. Deviating from them a few pounds either way should not adversely affect long term wear or safety.
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Joined: Feb 2014
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From: Hattiesburg, Ms.
I'm running mine ~36 PSI, a lot of roads I travel on just suck, I probably have a harsher ride, but I don't worry as much about damage to the rims and tires and I'm constantly loading it down with something...
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From: Arizona/Texas
That's a good point. I ran 40 front and 38 rear in my 2010 FX2, and was able to go almost 20,000 miles before a tire rotation. I might have to rethink 40 psI in the lighter truck.
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Junior User
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From: springstead wi
Drove to town yesterday it was a 14 mile drive at 18 degrees outside . I left the tire pressure screen up on my dash . When I left it read 32 front and 31 back on both sides . As I pulled in it was at 34 front and 33 back both sides . Think I will leave it along and check it a few times during the trip to see where it ends up .
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From: Isanti, MN
Originally Posted by uppernorth
Drove to town yesterday it was a 14 mile drive at 18 degrees outside . I left the tire pressure screen up on my dash . When I left it read 32 front and 31 back on both sides . As I pulled in it was at 34 front and 33 back both sides . Think I will leave it along and check it a few times during the trip to see where it ends up .
