Tire Pressure

[rneal55555]

I have a 2016 1500 with 20” tires. I have a set of 17winter tires, I’m curious what the factory recommended tire pressure is for the 17” tires.

The owner’s manual just says look at the door sticker which only shows the 20” tire info.

So, if somebody with a truck that came with17” tires could take a peek at the sticker on their truck and let me know what it says I’d appreciate it.

 

[crash68]

The door sticker pressure for the LT265/70/17 is 43 psi for all four.

 

[Racer9]

Look at you tires sidewall, somewhere on there, usually in very tiny lettering, it will list the load rating and maximum tire pressure. You can run lower pressure for a better ride, as long as you don't go too low. The door sticker is for the oem tires.

 

[Sandevino]

I run 35psi in mine year round

 

[CanuckRam1313]

I run 40psi (checked and adjusted cold) in my summer 20's and on my winter 17's.
Perfect pressure IMPO.

My 20" summers are 35" Michelin Defender LTX M/S in Range-E.
My 17" winters are Blizzak DM-V2 in standard P-Metric.

My door sticker indicates 39psi for all four, so, I just round up to 40 and call it good.

EDIT ** - if I am towing and/or hauling..I'll adjust my tire pressure (cold) accordingly.
For everyday usage though, 40psi is a sweet spot for comfort, contact, and wear.

 

[turkeybird56]

OP, would help if you specified what brand and exact P metric or SAE size.

Just make sure you check and fill cold tires, not road run tires. Further, you are in a cold climate, so expect your tire pressures to fall a lil the colder it gets.

 

[John Jensen]

I run 40psi in my Hercules Terra Trac AT X-Venture, 285x70-17 E. Have a decent ride and even wear.

 

[rneal55555]

OP, would help if you specified what brand and exact P metric or SAE size.....

They are Firestone Winterforce 265/70R17's

 

[rneal55555]

Thanks for the responses, I'm a little smarter now than I was before, I have them a little under the OEM 20" pressure which is 39PSI cold, based on the responses I'll probably boost them up a little to 43 which is the door sticker pressure for the 265/70R17's.

 

[TorqueWagon]

I have a 2016 1500 with 20” tires. I have a set of 17winter tires, I’m curious what the factory recommended tire pressure is for the 17” tires.

The owner’s manual just says look at the door sticker which only shows the 20” tire info.

So, if somebody with a truck that came with17” tires could take a peek at the sticker on their truck and let me know what it says I’d appreciate it.

If you want to check for the best contact footprint on the road surface do the "chalk test". This will also help you to get even treadwear and show if you have under inflated or over-inflated. Check YouTube there's about a million videos on how to do the chalk test.

 

[LouM]

Here is a website with a tire pressure calculator, you can enter your know tire size and pressure then input your new tire size and it will calculate the pressure needed to be at the same load rating.
https://tiresize.com/pressure-calculator/

My LT275/65R18C's were listed at 38 psi, my 265/70R18 run less pressure for the same load capacity.

from the above website calculator
OEM Size (LT275/65R18 C) Load Capacity: 2054 lbs. @ 38 psi.
Passenger type tires are fitted with a 10% overage in load capability when used on SUV's, Light Trucks, and Vans because of the difference in load handling. This load overage must be added when changing to a Passenger type tire from an OEM LT tire.

That brings the effective load capacity to acheive up to 2259 lbs.

New Size (265/70R18 SL) Load Capacity: 2305 lbs. @ 29 psi.
**Although this pressure meets the load capacity, 29 psi may be too low for optimum tread wear.
Assessing tire contact patch for proper treadwear is always recommended.

 

[GTyankee]

Racer9

You can not go buy the Tire Sidewall

Each tire can be mounted on several different vehicles & of different weights.

Like, if you were to use that tire on a 1 ton vehicle, the pressure would be different than if was mounted on a 3/4 ton or 1/2 ton

The sidewall only informs the person mounting that tire, what the Highest Pressure that can be inflated to.
I also gives the Date that the tire manufactured

How to Read a Tire Sidewall | Big O Tires

How to Read a Tire Sidewall

www.bigotires.com

I wish you a Happy Holiday & a great New Year

 

[Racer9]

Racer9

You can not go buy the Tire Sidewall

Each tire can be mounted on several different vehicles & of different weights.

Like, if you were to use that tire on a 1 ton vehicle, the pressure would be different than if was mounted on a 3/4 ton or 1/2 ton

The sidewall only informs the person mounting that tire, what the Highest Pressure that can be inflated to.
I also gives the Date that the tire manufactured

How to Read a Tire Sidewall | Big O Tires

How to Read a Tire Sidewall

www.bigotires.com

View attachment 557174

I wish you a Happy Holiday & a great New Year

I'll have to respectfully disagree. The sidewall info is for the tire itself, not the vehicle or wheel, and refers to the maximum load and maximum air pressure.
The pic you posted shows "max load 1300 lbs - max pressure 35 psi". That's 5200 lbs total for the (4 tire) vehicle. That's a 1/2 ton truck plus a couple hundred lbs, depending on vehicle configuration. A 1 ton weighs more than that empty.
If you're mounting 1/2 ton tires on a 1 ton, you're asking for trouble, and the air pressure won't make any difference. If you mount 1 ton tires on a 1/2 ton you might not like the ride, even at lower air pressure. Saying that, my tires are rated at around 2000 lbs at 51 psi, I'm running 38 psi and it is a little firm, but I don't mind.
I also feel them after any long trip for heat.
The vehicle door sticker refers to the oem tires, or similar spec replacement.
Yes, you can run slightly under or over inflated, just be aware that mileage and handling may suffer.
Merry Christmas and Happy New Year.

 

[Canesroc56]

Good morning, put 35x12.5 MT Baja AT’s on a ‘24 RAM 3500. The door placard for OEM 275, 70 R18 was 60 front, 80 rear. The cold psi for the Mikeys are 80 cold. Anyone riding these and have a recommendation for the tire pressure…thanks

 

[LouM]

Good morning, put 35x12.5 MT Baja AT’s on a ‘24 RAM 3500. The door placard for OEM 275, 70 R18 was 60 front, 80 rear. The cold psi for the Mikeys are 80 cold. Anyone riding these and have a recommendation for the tire pressure…thanks

Those pressures are for the factory tires with the truck carring it's max rated load. An empty truck does not need anywhere that much air pressure to safely handle the weight it is carrying.
Many manufactures used to list the load carrying capacity of their tires at the various inflation pressures. But it has gotten harder to find.

 

[Canesroc56]

Thanks, yes I’m finding it terribly hard to find. Chalk test will probably be the way to go…thanks

 

[TJP440]

I'm learning so don't be to harsh on me

Won't changing the tire pressure trigger the dash indicator? and if so does it require Alpha to change it?

 

[GTyankee]

The IMAGE that i posted is of course an example

It is not an actual picture of a tire
The numbers are just also an example

Michelin's explanation of their tires

https://www.michelinman.com/auto/auto-tips-and-advice/tires-101/tire-markings-explained

 

[Dusty]

I'll have to respectfully disagree. The sidewall info is for the tire itself, not the vehicle or wheel, and refers to the maximum load and maximum air pressure.
The pic you posted shows "max load 1300 lbs - max pressure 35 psi". That's 5200 lbs total for the (4 tire) vehicle. That's a 1/2 ton truck plus a couple hundred lbs, depending on vehicle configuration. A 1 ton weighs more than that empty.
If you're mounting 1/2 ton tires on a 1 ton, you're asking for trouble, and the air pressure won't make any difference. If you mount 1 ton tires on a 1/2 ton you might not like the ride, even at lower air pressure. Saying that, my tires are rated at around 2000 lbs at 51 psi, I'm running 38 psi and it is a little firm, but I don't mind.
I also feel them after any long trip for heat.
The vehicle door sticker refers to the oem tires, or similar spec replacement.
Yes, you can run slightly under or over inflated, just be aware that mileage and handling may suffer.
Merry Christmas and Happy New Year.

Actually, GTyankee's first statement is technically correct:

"Each tire can be mounted on several different vehicles & of different weights."

The second sentence confuses the subject because the comparison is from a passenger tire to a light truck tire for a 3/4 ton truck. I don't think that is exactly what the original poster was asking. The OP's truck came from the factory with 20 inch tires for a 1500. The door jamb decal lists the recommended air pressure for that particular tire and vehicle.

Changing tire size and possibly load rating would likely dictate a different tire pressure. Unfortunately, the only way of knowing what the factory air pressure rating would be is to find another truck with similar equipment and with the smaller tire.

My son's 2018 Laramie 1500 came from the factory with BF Goodrich's of the same tire size as mine. My factory jamb decal says TP at 36 pounds, his is 39. His is four-wheel drive, mine is not.

Regards,
Dusty
2019 Ram 1500 Billet Silver Laramie Quad Cab 2WD, 5.7 Hemi, 8HP75, 3.21 axle, 33-gallon fuel tank, 18” wheels. Build Date: 3 June 2018. Now at 124444 miles.

 

[06 Dodge]

Some may like this tire inflation table pdf from Toyo, starting around page 13, I used duck duck go to search for: Toyo Guidelines for the Application of Load and Inflation Tables it has a wealth of info, tried to upload the pdf but its to big at 2.8 megs