Truck tire pressure.

[j09789]

Recommended cold PSI is 60 front & 65 rear. They are Michelin 275/65/20 load range E on a 2017 F250 Power Stroke. Should I increase the pressure when towing my 39' toy hauler (Triton by Voltage)?

[slapshot12]

Cummins12V98 wrote:

slapshot12 wrote:
When towing, I always inflate the truck tires to 80 to get max capacity. When not towing, the recommended pressures are fine. Same thing with trailer tires, they are always inflated to max rated psi. Low pressure creates heat, which will destroy a tire sooner or later.

I advise doing a bit of research.

It's worked fine for over 20 years with not a single blow out. I should clarify, 80 on the rear 65 on the front since most of the pin weight is on the rear tires.

[wilber1]

We left home on Jan 1 after an ice storm. We had no problem pulling our rig up a 300 yard driveway that was covered in over an inch of sheer ice. No problem at all getting the rig moving with the rear tires at max pressure when there is around 10K sitting on the truck's axles.

I don't now how many times I have seen people say on this forum that they have just upgraded to E's from D's etc, so what pressure should they run in the higher capacity tire?. Why on earth would someone install a higher capacity tire then derate it to the capacity of the ones they just took off? It makes no sense to me.

[Cummins12V98]

slapshot12 wrote:
When towing, I always inflate the truck tires to 80 to get max capacity. When not towing, the recommended pressures are fine. Same thing with trailer tires, they are always inflated to max rated psi. Low pressure creates heat, which will destroy a tire sooner or later.

I advise doing a bit of research.

[slapshot12]

When towing, I always inflate the truck tires to 80 to get max capacity. When not towing, the recommended pressures are fine. Same thing with trailer tires, they are always inflated to max rated psi. Low pressure creates heat, which will destroy a tire sooner or later.

[wilber1]

My Ram calls for Front 60, Rear 45 empty 75 loaded. I run 80 in the rears when towing and 50 empty because I am never really empty. I've said it before, tire inflation tables give maximum load capacities at different pressures, they are not recommended pressures for your vehicle. It makes no sense to me to give up a bunch of load capacity when heavy as long as tires are wearing evenly.

[Cummins12V98]

austinjenna wrote:

Are you towing 365 or seasonal?

I am just a weekend camper, otherwise the truck is my daily driver.

That is your choice but you may want to try running pressures for your load, MANY benefits.

[Cummins12V98]

rhagfo wrote:

Cummins12V98 wrote:

austinjenna wrote:
I also just run at max PSI all the time, towing or not.

WHY???

Ron, do you think they would notice the better grip on wet, snowy, or icy roads if they lowered the pressure to 45 psi, or DRW to 35????
I always like those the complain about poor snow traction with DRW, but run them like rocks at 80 psi??:h

ABSOLUTELY! As you know driving in the NW it can be slick from rain, black ice or snow. Proper inflation will give the best contact patch for traction AND stopping power. Ride quality is just another benefit.

That reminds me I need to lower my rears from 67 to 35 this am.

[rhagfo]

Cummins12V98 wrote:

austinjenna wrote:
I also just run at max PSI all the time, towing or not.

WHY???

Ron, do you think they would notice the better grip on wet, snowy, or icy roads if they lowered the pressure to 45 psi, or DRW to 35????
I always like those the complain about poor snow traction with DRW, but run them like rocks at 80 psi??:h

[austinjenna]

Are you towing 365 or seasonal?

I am just a weekend camper, otherwise the truck is my daily driver.

[Cummins12V98]

ChuckSteed wrote:
I’ve owned many trucks and autos over the last several decades.. I’ve never seen 100K on any set of tires no matter what brand... I am sorry but I don’t buy into 100K on tire mileage..

And if you are towing a fifth wheel I’d bet getting 50K would be about the maximum you’d ever be able to see, and have any safe level of tread depth left..

I have no reason to lie! The 100k was with BFG's and 120 Michelins. These were 3rd gen takeoffs. I commuted 40-60 miles each day in NW WA and towed weekends in the Summer.

I spose you will not believe me when I tell you my rear tires never rotated on my 81 VW PU made it to 150K and still has 3/16" tread left.

These Michelins shown below had 40K on them with plenty of towing with 4,500# pin. 11 RAM Dually. The Michelins I just removed from my 15 only made it to 40 because I was lazy and did not lower the pressures and I think they were not as good of quality as the set shown.

[Cummins12V98]

austinjenna wrote:

If you are constantly towing something that is fine. But if you know what the max weight is of your heaviest trailer you may want to look up the proper inflation. 60k on s SRW truck with Michelins is NOT very good mileage. I would easily get 100-120k with Michelins on my 98 RAM 2500.

I think getting 100K on tires is pretty unusual but good for you. I cant remember every getting that type of mileage on anything I ever owned. I just fill mine to the max, same as the fiver tires and tow it. I dont want to make camping more complicated by filling up tires, releasing pressure, filling up again etc...

Are you towing 365 or seasonal?

[ChuckSteed]

I’ve owned many trucks and autos over the last several decades.. I’ve never seen 100K on any set of tires no matter what brand... I am sorry but I don’t buy into 100K on tire mileage..

And if you are towing a fifth wheel I’d bet getting 50K would be about the maximum you’d ever be able to see, and have any safe level of tread depth left..

[austinjenna]

If you are constantly towing something that is fine. But if you know what the max weight is of your heaviest trailer you may want to look up the proper inflation. 60k on s SRW truck with Michelins is NOT very good mileage. I would easily get 100-120k with Michelins on my 98 RAM 2500.

I think getting 100K on tires is pretty unusual but good for you. I cant remember every getting that type of mileage on anything I ever owned. I just fill mine to the max, same as the fiver tires and tow it. I dont want to make camping more complicated by filling up tires, releasing pressure, filling up again etc...

[Cummins12V98]

austinjenna wrote:

WHY???

Because of this-> What Chuck said.... there is “no” reason to overthink this! Some folks would have you....dropping air pressure when you drop at a campground, and then re-air prior to departure. Properly inflate for the outing ( whether it’s a weekend or an across the country vacation), then take them back down after your outing. I leave mine at my desired pressure all the time. I tow several different trailers (of differing tongue/pin weights), and often not towing....I would forever be adjusting tire pressures. I can’t be completely incorrect...as I got just over 60K miles on my original set of Michelin’s.

If you are constantly towing something that is fine. But if you know what the max weight is of your heaviest trailer you may want to look up the proper inflation. 60k on s SRW truck with Michelins is NOT very good mileage. I would easily get 100-120k with Michelins on my 98 RAM 2500.