schwartzy18510
Junior Member
- Joined
- Feb 22, 2023
- Posts
- 16
- Reaction score
- 42
- Location
- Sturgis, MI
- Ram Year
- 2008
- Engine
- 5.7L HEMI V8
Hello all! New owner of a 2008 Dodge Ram 1500 SLT Quad Cab 4x4 here. I'm in the midst of a minor tune-up, and discovered while setting my initial tire pressures that my Owner's Manual in the glove box is missing the "Tire Inflation Pressure & Loading" booklet that I've seen referenced elsewhere on the interwebs. My understanding is this booklet contains charts listing recommended tire pressures for different load conditions and even different truck configurations (such as cab type, wheel size, etc.), compared to the one-size-fits all PSI rating listed on the driver door jamb.
I'm trying to locate this booklet since I intend to tow with my Ram and would like to know Dodge's PSI recommendations at different loads. I'm also a bit of an efficiency nut with a strong interest in fuel economy — HEMI not withstanding! — and would love to know whether it's true that this booklet recommends running a tire pressure that is 5 PSI over that listed on the driver door jamb for all Quad Cab models.
My repeated Google searches for a PDF of this document came up empty. I created a user account over at Mopar's Customer Connection portal to gain access to all of their official documentation related to my truck, but found that it was not listed. I even contacted Mopar via chat, but was told that it is no longer available online and that hard copies were only provided to the original owners. The rep I spoke with directed me to Tech Authority's website and told me I could purchase it there, but it doesn't look like they have it available either.
For sake of context, my Ram came equipped from the factory with the P275/60R20 tire and rim combo. The Tire & Loading Info decal on the driver door jamb lists the standard cold tire inflation pressure of 35 PSI front and rear, and the currently installed Mastercraft Courser HSX Tour P275/60R20's list a max inflation pressure of 44 PSI. All pretty straight-forward. I'm running 35 PSI cold right now per this info, and am familiar with how to dial in tire pressures via the chalk contact pattern test.
I'd simply like to locate this pamphlet to satisfy my thirst for all information related to the performance and use of my new-to-me truck. If the above-referenced claim can be verified, I imagine the OEM recommendation for adding 5 PSI to the door jamb tire pressure recommendation for all Quad Cab models may also be interesting news to many of us here. Do any of my fellow 3rd-gen owners by chance have this booklet floating around in their glove box?
I'm trying to locate this booklet since I intend to tow with my Ram and would like to know Dodge's PSI recommendations at different loads. I'm also a bit of an efficiency nut with a strong interest in fuel economy — HEMI not withstanding! — and would love to know whether it's true that this booklet recommends running a tire pressure that is 5 PSI over that listed on the driver door jamb for all Quad Cab models.
My repeated Google searches for a PDF of this document came up empty. I created a user account over at Mopar's Customer Connection portal to gain access to all of their official documentation related to my truck, but found that it was not listed. I even contacted Mopar via chat, but was told that it is no longer available online and that hard copies were only provided to the original owners. The rep I spoke with directed me to Tech Authority's website and told me I could purchase it there, but it doesn't look like they have it available either.
For sake of context, my Ram came equipped from the factory with the P275/60R20 tire and rim combo. The Tire & Loading Info decal on the driver door jamb lists the standard cold tire inflation pressure of 35 PSI front and rear, and the currently installed Mastercraft Courser HSX Tour P275/60R20's list a max inflation pressure of 44 PSI. All pretty straight-forward. I'm running 35 PSI cold right now per this info, and am familiar with how to dial in tire pressures via the chalk contact pattern test.
I'd simply like to locate this pamphlet to satisfy my thirst for all information related to the performance and use of my new-to-me truck. If the above-referenced claim can be verified, I imagine the OEM recommendation for adding 5 PSI to the door jamb tire pressure recommendation for all Quad Cab models may also be interesting news to many of us here. Do any of my fellow 3rd-gen owners by chance have this booklet floating around in their glove box?
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