Another tire psi question
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Trailering
Joined: Jul 2024
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Another tire psi question
Hello all,
I just picked up a 24 350 xlt 4x4 ccsrw 7.3 with 275/65/20 Bridgestone Dueler A/T's. I have spent the past few nights reading the threads regarding tire psi. This truck will not be towing and the most payload in the bed would be luggage for vacations. No off roading, just asphalt, mostly highway miles. Without needing forscan what would the best psi be for a decent ride without affecting mpg and tire wear? I know this topic has been beat to death but the more threads I read the more confusing it became. Thank you all in advance.
I just picked up a 24 350 xlt 4x4 ccsrw 7.3 with 275/65/20 Bridgestone Dueler A/T's. I have spent the past few nights reading the threads regarding tire psi. This truck will not be towing and the most payload in the bed would be luggage for vacations. No off roading, just asphalt, mostly highway miles. Without needing forscan what would the best psi be for a decent ride without affecting mpg and tire wear? I know this topic has been beat to death but the more threads I read the more confusing it became. Thank you all in advance.
Lead Driver
Joined: Jan 2002
Posts: 8,644
Likes: 4,733
From: Itinerant
Hello all,
I just picked up a 24 350 xlt 4x4 ccsrw 7.3 with 275/65/20 Bridgestone Dueler A/T's. I have spent the past few nights reading the threads regarding tire psi. This truck will not be towing and the most payload in the bed would be luggage for vacations. No off roading, just asphalt, mostly highway miles. Without needing forscan what would the best psi be for a decent ride without affecting mpg and tire wear? I know this topic has been beat to death but the more threads I read the more confusing it became. Thank you all in advance.
I just picked up a 24 350 xlt 4x4 ccsrw 7.3 with 275/65/20 Bridgestone Dueler A/T's. I have spent the past few nights reading the threads regarding tire psi. This truck will not be towing and the most payload in the bed would be luggage for vacations. No off roading, just asphalt, mostly highway miles. Without needing forscan what would the best psi be for a decent ride without affecting mpg and tire wear? I know this topic has been beat to death but the more threads I read the more confusing it became. Thank you all in advance.
Lead Driver
Joined: Dec 2020
Posts: 8,639
Likes: 2,433
Hello all,
I just picked up a 24 350 xlt 4x4 ccsrw 7.3 with 275/65/20 Bridgestone Dueler A/T's. I have spent the past few nights reading the threads regarding tire psi. This truck will not be towing and the most payload in the bed would be luggage for vacations. No off roading, just asphalt, mostly highway miles. Without needing forscan what would the best psi be for a decent ride without affecting mpg and tire wear? I know this topic has been beat to death but the more threads I read the more confusing it became. Thank you all in advance.
I just picked up a 24 350 xlt 4x4 ccsrw 7.3 with 275/65/20 Bridgestone Dueler A/T's. I have spent the past few nights reading the threads regarding tire psi. This truck will not be towing and the most payload in the bed would be luggage for vacations. No off roading, just asphalt, mostly highway miles. Without needing forscan what would the best psi be for a decent ride without affecting mpg and tire wear? I know this topic has been beat to death but the more threads I read the more confusing it became. Thank you all in advance.
Without using Forscan to lower the TPMS threshold, you can only go down to about 20% below what is recommended on the door sticker. More than that will set off the TPMS light. So if your rear tires call for 85 psi you might be able to run a cold PSI of 68. You'll have to experiment or pick a number and maybe live with the warning light.
I aim for 55 front, 50 rear in my CCSB 6.7l SD. Even at 50 psi mostly the center section of tread is making contact. I might try 45 in the rear to see if that improves.
Fleet Mechanic
Joined: Jul 2019
Posts: 1,648
Likes: 694
Sorry, but I have to ask. No towing and a couple hundred pounds at most in the bed; so why an F350? Don't get me wrong, I'm not judging your choice, just wondering why. An F150 would more than meet your payload needs and would give a better ride and much better fuel mileage.
Lead Driver
Joined: Dec 2020
Posts: 8,639
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Fleet Mechanic
Joined: Jul 2019
Posts: 1,648
Likes: 694
A good deal and fun to drive. You can't beat that.
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Tuned
Joined: Sep 2019
Posts: 413
Likes: 285
From: N. Appalachistan
Hello all,
I just picked up a 24 350 xlt 4x4 ccsrw 7.3 with 275/65/20 Bridgestone Dueler A/T's. I have spent the past few nights reading the threads regarding tire psi. This truck will not be towing and the most payload in the bed would be luggage for vacations. No off roading, just asphalt, mostly highway miles. Without needing forscan what would the best psi be for a decent ride without affecting mpg and tire wear? I know this topic has been beat to death but the more threads I read the more confusing it became. Thank you all in advance.
I just picked up a 24 350 xlt 4x4 ccsrw 7.3 with 275/65/20 Bridgestone Dueler A/T's. I have spent the past few nights reading the threads regarding tire psi. This truck will not be towing and the most payload in the bed would be luggage for vacations. No off roading, just asphalt, mostly highway miles. Without needing forscan what would the best psi be for a decent ride without affecting mpg and tire wear? I know this topic has been beat to death but the more threads I read the more confusing it became. Thank you all in advance.
On my short wheelbase Super Duty on 285/18's I usually run around 54F/50R cold. Ride quality is still terrible, relatively speaking, but it's better.
When I plow snow I run max pressure on the fronts, and when I haul over 10K I run max pressure on the rears. I try and keep it simple and not overthink it.
You can't honestly be concerned about the cost of fuel and tires if you buy a Super Duty to haul luggage (not that theres anything wrong with that).
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Laughing Gas
Joined: Dec 2021
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Bought a f350 bc you could....you sir are indeed a red blooded American!
I have a '22 f350 ccsb and I run the stated pressures on the door placard. I'm usually towing our 5th wheel so I absolutely want the proper inflation when loaded. When I hang it up for the winter and hunting season is in, I lower the rears to 60psi as well. It helps a little.
At the end of the day, it's a HD truck, its not gonna ride like a Volvo suv or something.
I have a '22 f350 ccsb and I run the stated pressures on the door placard. I'm usually towing our 5th wheel so I absolutely want the proper inflation when loaded. When I hang it up for the winter and hunting season is in, I lower the rears to 60psi as well. It helps a little.
At the end of the day, it's a HD truck, its not gonna ride like a Volvo suv or something.
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Trailering
Joined: Jul 2024
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We had Expeditions and in 2018 we traded in our Expy for an 18 F250 King Ranch ccsrw 6.7 Diesel. Truck was great but we"talked ourselves into thinking it's overkill", which it was but ran great and pretty smooth. We went back to an Expy and slowly realized how much we missed the Superduty. So here we are, back in the Superduty family and loving it. Just trying to make the ride a bit smoother. I know there is no real way to get good mileage or a great ride.
Fleet Mechanic
Joined: Mar 2021
Posts: 1,454
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Sorry, but I have to ask. No towing and a couple hundred pounds at most in the bed; so why an F350? Don't get me wrong, I'm not judging your choice, just wondering why. An F150 would more than meet your payload needs and would give a better ride and much better fuel mileage.
Logistics Pro
Joined: Sep 2002
Posts: 4,410
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From: Central KY
Without using Forscan to lower the TPMS threshold, you can only go down to about 20% below what is recommended on the door sticker. More than that will set off the TPMS light. So if your rear tires call for 85 psi you might be able to run a cold PSI of 68. You'll have to experiment or pick a number and maybe live with the warning light.
I aim for 55 front, 50 rear in my CCSB 6.7l SD. Even at 50 psi mostly the center section of tread is making contact. I might try 45 in the rear to see if that improves.
I aim for 55 front, 50 rear in my CCSB 6.7l SD. Even at 50 psi mostly the center section of tread is making contact. I might try 45 in the rear to see if that improves.
I imagine that 75 to 80 PSI in one of these trucks would be akin to a pogo stick or a mechanical bull.
Cargo Master
Joined: Jul 2011
Posts: 2,664
Likes: 971
From: Walpole, MA
Honestly, I have been tooling around with 80psi (cold) in my Falkens and I haven't noticed much of a difference from the 65psi I was running before. I pumped them up when I picked up our fifth wheel and haven't felt the need to bring them back down. Given the context it is a 3/4 ton truck it isn't going to ride like your grand father's caddy, I think it is pretty good. My father has a set of x-code springs on the front end of his 2000 F350 back in the day... hitting a pot hole on those would rattle your fillings. It was an awful ride when the plow wasn't on the front end. Of course it is all subjective.
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