Truck tire pressure.

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?

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..

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...

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.

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.

j09789 wrote:
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)?

I would run the max 80 psi in the rears and 65 psi in the fronts.

Your truck can weigh 3300-3500 lbs on the rear axle. Now add 3500-3800 lbs for the pin weight and a hitch. Your looking at close to 3600 lbs per tire or close to max tire load.
The truck front changes little to non when towing or running around empty so 65 should be fine for a 2600-2800 lb load per tire. This will stiffen those front tires for those tight steering around corners events.

Drop by a set of scales and weigh front and rear axles. That way you know if a tire/whee/suspension is overloaded or the tire has the best pressures. You can read the tires tread wear for best pressures after several thousand miles.

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

WHY???

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

atw,

Thanks for that chart. Just printed it off to keep for reference.

FWIW, I run my tires during the winter (dedicated snows) at psi on door jam. Not worried about towing the sled trailer on weights. Summer tires and 5er, run at sidewall psi. Makes for a stiffer ride, but no problems.

ChuckSteed wrote:
I keep it simple.. When I know I am making a trip with the fifth wheel I inflate drive tires to maximum pressure stamped on side walls.. front tires I run at 65 psi...

I see no reason to run to weight scale all the time... been towing for over 40 years with many different rigs...

Weigh one time I suppose... I didn’t, don’t know and really don’t care... I know what the empty weight of the 5er is and I’ve got a few thousand pounds of gear in the fifth wheel..

My wife and I weigh about the same as always and have two 80 pound chows...

I run the fifth wheel tires at 110 psi... we tow at 62 and life is just fine

Cheers

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.