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)?

[austinjenna]

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.

[JIMNLIN]

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.

[Cummins12V98]

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

WHY???

[austinjenna]

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

[ACZL]

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.

[memtb]

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.

[ChuckSteed]

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

[Cummins12V98]

DReisinger wrote:
I am running Goodyear,Load rang G, 19.5" on my Dodge Dually at 110 lbs. Bring it On

Why? Do you carry more weight than I do?

[DReisinger]

I am running Goodyear,Load rang G, 19.5" on my Dodge Dually at 110 lbs. Bring it On

[centerline]

atwowheelguy wrote:
Here's the inflation table. You have to determine the weight on your axles by taking it to the scales.

60 psi will carry 6060 lbs. per axle.
65 psi will carry 6390 lbs. per axle.

Front GAWR could be 4550-5600.
Rear GAWR should be 6340.

Those standard pressures will handle any load up to the limit on the axles.

What is the front and rear GAWR on your truck?

all that is shown here is correct, BUT, often, GAWR's are exceeded... a 40' fiver with a hitch weight of 5000lbs+, will exceed the 6340 GVWR of this axle. so all other carefully prepared documents become inaccurate...

exceeding/ignoring these axle weight RATINGS means little to the law in a privately owned/used vehicle, but it is forbidden by law in those vehicles used in a work/commerce/for-hire application.. although STILL often ignored.

and there is one thing missing here to qualify the included document... which tire manufacture published it?... some manufactures design/build their tires with different pressure and load ratings than their competitions tires of the same size..

only the individual tire manufacture can tell you what the pressure/load rating is of their particular model of tire...

and the VEHICLE MANUFACTURES tag only indicates the pressures required for the unladen vehicle with the OEM supplied tires on it.

[Colo_Native]

I ran 70 in front and 80 in back with my FW

[Cummins12V98]

Unless you just want to blindly run the CYA pressures posted by manufacturers know your actual loaded and unloaded weights. In my experience of doing so for hundreds of thousands of miles it's best to add 10psi front and 5 psi to the rears over what the chart requires.

[memtb]

azdryheat wrote:
My sticker says 70 front and 65 rear and that's what I run. Tires been wearing fine.

It’s not “so much” tire wear pattern, as is potential heat generation from under inflation for load. Excessive heat generation can/will cause tire failure. Load charts are your friend, if in doubt....go to max inflation recommendations.

[Second_Chance]

azdryheat wrote:
My sticker says 70 front and 65 rear and that's what I run. Tires been wearing fine.

Not applicable to the OP. You have a DRW truck and the OP has an F250.

[Dave_H_M]

My f250 works well with 65 in front and 80 in rear.