Tire pressure

[HawkeyeSierra]

Manufacturers will recommend the pressure that will give the smoothest ride. I normally bump it up about 20% to get better mileage but the ride does suffer.

[Trucko20]

One of my tires has a slow drop in pressure. I think it's too slow to be an actual leak in the tire, but over the course of a few weeks the pressure steadily drops until I put more air in. Asked the dealership when I had it in last, they said they cleaned out the rim or something, but the problem persists.

 

Has anyone else ever had this problem?

[sdeeter19555]

One of my tires has a slow drop in pressure. I think it's too slow to be an actual leak in the tire, but over the course of a few weeks the pressure steadily drops until I put more air in. Asked the dealership when I had it in last, they said they cleaned out the rim or something, but the problem persists.

 

Has anyone else ever had this problem?

You have a leak somewhere, take it to a tire shop and let them find it...it could be even porosity in the rim itself (thinking aluminum). I check my tires once a month, they all drop together as it gets cold and they all rise together as it gets warm...and they are always within a single psi.

 

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[MaverickZ71]

Remember that the door decal says GM's recommended COLD tire pressure for the best all around handling/traction/fuel mileage. Key word being COLD. As in your truck has sat all night and you check the PSI before moving it or letting it sit in the daytime sun. I use good old free regular air and set mine at 35psi cold like GM recommends, even though the sidewall of the factory Bridgestone Dueler AT's says 44psi maximum. If I drive a few miles, especially at highway speeds, they will expand to 40psi, maybe up to 41 or 42 if it is 100F degrees out.

 

My point being, if you measure your tire pressure HOT and then deflate them to 35psi HOT, your tires will be under-inflated.

 

And if you tow or haul, you will probably want to increase your tire pressures above the numbers shown on the door decals, up to a number closer to the cold maximum pressure allowed as shown on the tires.

 

An exception is if your truck came from the factory with "P" (passenger) tires and you replace them with "LT" (light truck) tires, or the other way around, disregard your door decal and go with what your current tire manufacturer recommends for your usual load.

[grav898]

My door sticker says 43psi. I have a 2016 Crew Cab LD with a tow package. Currently running my Blizzak winters at 40psi cold. How does everyone else have a sticker that says 35???

[YEGbluesilverado]

11 hours ago, grav898 said:

My door sticker says 43psi. I have a 2016 Crew Cab LD with a tow package. Currently running my Blizzak winters at 40psi cold. How does everyone else have a sticker that says 35???

did your truck come with LT tires?  check your tire pressure sticker ive seen some with LT tires listed and some like mine with P tire size listed.  

[grav898]

Yes it did. It came from the factory with the Bridgestone Dueller AT RH-S tires.

[Zing47]

I have factory 18's on my 2018 truck. I usually run 35 psi cold and notice a 3-4 psi rise after driving in the Summer. Likewise, I've only seen a 1-2 psi rise in pressure so far this Fall season in Ga. the tires run smooth and have even wear so far.

[mcdavis]

On 12/6/2019 at 6:58 AM, grav898 said:

Yes it did. It came from the factory with the Bridgestone Dueller AT RH-S tires.

These are not LT tires in stock size. I have the same on my truck.