Tire pressure

[jimbo285]

What is the "normal" tire pressure for stock tires. I have the 255/70-17s but maybe other readers would like to know for their applications too. Warming temperatures lately and my truck was riding like a prairie wagon. Had 40-42 psi so I let some out. Went with 35 psi and it rides smooth again.

[fondupot]

Check the sticker inside the door and it will tell your the recommended PSI to run the tires. This number is typically the smoothest ride. For my truck with 275/55r20 it is 32 psi. Way too soft for me. I run mine at 35 psi and that is good for me.

[jimbo285]

Check the sticker inside the door and it will tell your the recommended PSI to run the tires. This number is typically the smoothest ride. For my truck with 275/55r20 it is 32 psi. Way too soft for me. I run mine at 35 psi and that is good for me.

Thank you fondupot. Been driving 35 years and didn't realize it was that easy. I feel like a dumba$$.

[bladz1454]

Check the sticker inside the door and it will tell your the recommended PSI to run the tires. This number is typically the smoothest ride. For my truck with 275/55r20 it is 32 psi. Way too soft for me. I run mine at 35 psi and that is good for me.

+1, I've been running 35 PSI in all my tires this winter. In the summer I will stagger them with 1-2 more PSI in the fronts for MPG.

[Dunc]

Deleted.

[SouthpawHD]

Funny, I was just messin with it the other day and was going to look this up.

 

My tires say max 51psi. They came with about 34psi when I purchased it from the dealership. Truck rode nice and they didn't look low either. I now increased it up to about 41-42. I think it's a bit of balancing act between comfortable ride and maximizing tire wear and fuel economy. I am guessing running them around 48+ is a bit too much though for a comfortable ride.

[clatla]

The rating on the side of the tire is for max load. If you are not running with that much weight you will wear out the centers long before the outer edges. Besides it will ride rough. I have worked at a few different tire shops in my younger years and everything that left the door had 35 psi in it. Best ride and longest tire life.

[SouthpawHD]

The rating on the side of the tire is for max load. If you are not running with that much weight you will wear out the centers long before the outer edges. Besides it will ride rough. I have worked at a few different tire shops in my younger years and everything that left the door had 35 psi in it. Best ride and longest tire life.

 

Good to know, thanks for the info.

[TJay74]

I balance the door sticker with how the tires are actually wearing. I run 37 front and 34 rear in mine. With those settings on the stock 20" wheels and stock size tire it allows the tires to wear evenly across the tread.

[redwngr]

Funny, I was just messin with it the other day and was going to look this up.

 

My tires say max 51psi. They came with about 34psi when I purchased it from the dealership. Truck rode nice and they didn't look low either. I now increased it up to about 41-42. I think it's a bit of balancing act between comfortable ride and maximizing tire wear and fuel economy. I am guessing running them around 48+ is a bit too much though for a comfortable ride.

When the tire maker printed the side of the tire, they didn't know what vehicle it would be installed on or how much load the vehicle would carry.

 

The recommended load for the tire size installed at the factory will on the sticker on the (B pillar) door post. That number is the minimum pressure if the vehicle is at maximum rated load.

 

I'd bet that the door label probably says between 32 and 36 psi.

[SouthernSilveradoGuy85]

I have mine at around 40 cold. With 35 PSI of course it rode smoother, but too me they looked low so I uped it some for better tire wear. It still rides pretty smooth and still handles very nice for a full size 4x4 truck. I have factory 18s, but the smaller tire sidewall you have I would think the more PSI you'll need so the tire wonk't seem so low and give you more tire flex for bumps and so on.

[Bonker]

35 front and rear on 275/55/20's

[gone_fishing]

I kept my stock Goodyear SRA's on the higher side most of last summer and into winter (38-40 lbs). I ended up going back down to 33-34 PSI after I noticed that both rear tires where wearing faster in the middle compared to the outside. The two center tread grooves had about 1/16" less tread then the outer grooves. The front tires were fine (even wear across all grooves). I can only assume that the higher pressure combined with no weight in the bed made the center wear faster. I haven't rotated the tires for about 15,000 miles now so I'm overdue.

[rgb24]

My 2015 Ltz Z71 recommends 32 psi for the stock Goodyear SRA's 275/55/20

[Lewislanway]

I balance the door sticker with how the tires are actually wearing. I run 37 front and 34 rear in mine. With those settings on the stock 20" wheels and stock size tire it allows the tires to wear evenly across the tread.

EVERY GM VEHICLE I have saw or asked someone there PSI is 32 for completely different vehicles. Seirra DBL-cab v8 4x4 vs Acadia at home-same 32 psi.. I totally agree, aggressive/ somewhat need more psi. my truck says 32psi, in a matter of 3-4 weeks the outside high edges and end tread had worn significantly. We're the rest of the TOYO 65k mile tires look perfect still. I've increase mine as well to similar although run a little higher. I think the truck weight has a lot to do with it.