Tire Pressure

[jerbo1978]

Hello everyone...
I have a 2012 Ram slt quad cab with 35/12.50/18 on it...
Was wondering what tire pressure you think I should be running in them..

 

[rzr6-4]

My last set of tires was essentially the same size, but mine is a 2500 so I weighed a little more. That said, I was running 33 to 35 psi. Would air them up to 40 or 45 or something like that in the rear for towing. Since you are a little lighter I would think somewhere in the 30 to 33 range.

I started out at 45, then 40, then 38, and all of those it was super floaty in the rear when on gravel. But those low 30s gave much better ride and still a good wear pattern.

 

[06 Dodge]

I would start by looking at the below URL for Tire load inflation guide from Toyo tires:

https://www.toyotires.com › media › 2125 › application_of_load_inflation_tables_20170203.pdf

 

[DILLIGAF]

I run 35psi in my 37 Toyo MTs

 

[Wild one]

Tire Pressure 101: The Chalk Test

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www.youtube.com

How To Chalk Test Your Tires To Find Ideal Pressure for On-Road Driving

Welcome back to Gator Overland Channel. In today's video we use chalk to find the ideal tire pressure for a balance of on-road comfort, enhanced tracking con...

www.youtube.com

 

[bm02tj]

I use chalk with good luck as too much air wears center of tire

 

[jerbo1978]

My last set of tires was essentially the same size, but mine is a 2500 so I weighed a little more. That said, I was running 33 to 35 psi. Would air them up to 40 or 45 or something like that in the rear for towing. Since you are a little lighter I would think somewhere in the 30 to 33 range.

I started out at 45, then 40, then 38, and all of those it was super floaty in the rear when on gravel. But those low 30s gave much better ride and still a good wear pattern.

I'll give it a try..pep boys had 54 psi in them..thanks

 

[Magfan2]

When I go down to the mid 30's I get the inflation alert. 36 and up will work - been running 40. New tires tomorrow! 40 seems comfortable.

 

[British Bulldog]

36 psi here. As per door plate.

 

[Magfan2]

Not stock tires.

 

[SouthernBornRebel]

Hello everyone...
I have a 2012 Ram slt quad cab with 35/12.50/18 on it...
Was wondering what tire pressure you think I should be running in them..

Note: That the larger tire needs less pressure than a smaller tire to carry the same vehicle weight.

 

[Cruze418]

I always run 5 to 10 lbs over what the mfr suggests. Not a Ram truck, but I had over 80,000 miles on my Chrysler 200's tires. If not for winter driving, it would have had more. I do drive like I like I have an egg under my foot, no hard turns or braking. Do this with all of my vehicles, helps fuel mileage too.

 

[Wild one]

I always run 5 to 10 lbs over what the mfr suggests. Not a Ram truck, but I had over 80,000 miles on my Chrysler 200's tires. If not for winter driving, it would have had more. I do drive like I like I have an egg under my foot, no hard turns or braking. Do this with all of my vehicles, helps fuel mileage too.

Years ago when we still had a Firestone manufacturing plant,they put on a school at the local drag/road course track,and they taught us to run roughly 10 psi over reconmended pressures for handling and milege,and to run 10 psi under reconmended pressures for the drag track,i've employed their reconmendations for the last 40 years,as i went to their school back in 85

 

[Dusty]

I've seen two nearly identically equipped trucks with tires from different manufacturers in the same size with different tire pressures listed on the door jamb. Somebody must've thought there was a difference.

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 142099 miles.

 

[nascar72]

Hello everyone...
I have a 2012 Ram slt quad cab with 35/12.50/18 on it...
Was wondering what tire pressure you think I should be running in them..

From what I see according to size they would seem different from oem's. So from there, I would go maybe 40-45 psi and check for wear pattern in about 5k and re-adjust pressure according to wear.

 

[RamDiver]

From what I see according to size they would seem different from oem's. So from there, I would go maybe 40-45 psi and check for wear pattern in about 5k and re-adjust pressure according to wear.

Wouldn't the chalk test provide near instant results and save the potential tire wear?

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