[lovemycolorado]

I live in Phoenix and during the summer when I check my cold tire pressure it hovers around 35 psi where it should be when the summer morning temps are in the high 60s+ or even the 70s+, then when I'm out on the road in 100+ degree weather later in the day at highway speeds it gets up to around 39, even 40 psi. My questions is about winter conditions, as right now when the temps in the early morning are often in the high 30's or low 40's my cold psi is usually around 31-33 psi, the when out driving when it warms up to high 60's to mid 70's it register's around 35 psi. When it is cold like this should I be inflating the tires such that the morning psi is up closer to the recommended 35 psi, or just assume it is o.k. at the low 30's psi just due to the very cold winter temps in the early a.m.? Thanks in advance for your replies.

 

[Burgess159]

I wouldn't add any air to the tires until you get below 30. Your tires should be fine.

 

[Inacanyon]

I usually run 35psi morning temp.

Is the ride rough or center of tire wearing faster then back off pressure

 

[lovemycolorado]

I usually run 35psi morning temp.

Is the ride rough or center of tire wearing faster then back off pressure

I do run 35 cold in the summer when it's warm in the morning, but I'm concerned that they are so much lower in the morning with the cold weather in the winter and I'm asking if I should add air pressure in the winter due to the cold mornings? They ride fine and I think they are wearing properly.

 

[Inacanyon]

It’s teens here in the winter and yes I run 35psi in the morning

 

[oak1971]

I live in Wisconsin and my pressures have stayed between 34 and 36 without doing a thing. Maybe they have adjusted pressures at oil changes, I haven't asked.

 

[Jiggy]

I have gone through 2 sets of good year Kevlar 255/60/17. And they have cupped because of the tire pressure swing. I'll post a pic of the old tires when I get home. I have found that 32 to 33 Psi cold works best for me. I'm usually at 36-38 when I get to work. But I'm the summer I have seen 40 psi.

 

[turbodiverart]

It's strange the GoodYear Kevlar's wear like that as I think max PSI is 45. I "thought" max PSI was not only load capacity but also the max so that the tires don't center wear prematurely.

 

[Jiggy]

Bad Shocks had some to do with it too.