Cadillac CTS-V - High tire pressure

With 100+ temps the last few days my tire pressure likes to rise a little more than normal.Today i saw it climb to 44 psi at which point it was notifying me constantly. However dropping the pressure a few pounds makes for a low (35-36 psi) tire pressure on a cold morning start in the garage. What range do you guys like to keep your tires? Max amount youd let it get to? I have GY Eagle RSA's. I think theyre rated for 50 psi but id like to stay away from that lol.

they should be 30 psi cold.

I usually set them to 30 or 32 when "cold" then they get to maybe 36 when hot. we get days with 40 deg swings so it does make a difference.

the best thing to do is figure out what temp you do the most riving at. if i remember correctly 30psi is what the door recommends

The higher PSI at cold the less it will raise due to heat resistence. Try 38-40 cold if you want minimal movement between cold and hot. I usually run about 36-38 cold with conti dw tires.

32 cold. Pirelli P Zero Nero A/S

I run mine high for MPG, I'm around 46psi hot.

It all depends on the size of the tire and driving conditions... If your running wider than stock you can run lower pressure... I have 245/45 up front 275/40 in back... 32 psi up front and about 26 in back... You can also monitor the wear pattern and make adjustments

I run 32 cold with Michelin PSS.

I run 35 psi cold on BFG g-force KDW 2's, as recommended by the European Tyre and Rim Technical Organization. I also have lightened the car by several hundred pounds, which gives me additional margin. Good reading:

http://www.tirerack.com/tires/tiretech/techpage.jsp?techid=72

you can always do the chalk line test on your tires (put a line of chalk across yoru tire and drive forward a little, and see what part has worn off, to see what your wear pattern will look like. running the pressure high will help gas mileage, but will wear your tires out faster, i sense the tires will cost more than the gas you save... I run mine a little high because i wear the edges at autox a lot, so it helps to balance out my tirewear

With 100+ temps the last few days my tire pressure likes to rise a little more than normal.Today i saw it climb to 44 psi at which point it was notifying me constantly. However dropping the pressure a few pounds makes for a low (35-36 psi) tire pressure on a cold morning start in the garage. What range do you guys like to keep your tires? Max amount youd let it get to? I have GY Eagle RSA's. I think theyre rated for 50 psi but id like to stay away from that lol.

As mentioned, the recommended cold pressure is 30psi. So anything above that cold is not "low".

If you want to run higher pressures for economy or some other reason, you have to find your limit. It sounds like you have, with 35-36 psi cold being as high as you can go before you get annoyed by the pressure alarm.

I run mine around 32-33 psi cold.

For your RS-A's, I'd suggest running them at whatever pressure causes them to wear out the fastest. They are a terrible tire and your enjoyment of the car will only rise when you replace them.

Had the same problem and seemed to go away when I was filled with nitrogen.

As mentioned, the recommended cold pressure is 30psi. So anything above that cold is not "low".

If you want to run higher pressures for economy or some other reason, you have to find your limit. It sounds like you have, with 35-36 psi cold being as high as you can go before you get annoyed by the pressure alarm.

I run mine around 32-33 psi cold.

For your RS-A's, I'd suggest running them at whatever pressure causes them to wear out the fastest. They are a terrible tire and your enjoyment of the car will only rise when you replace them.

They were on the car when I bought it. Im open to any tire suggestions as well but i suppose that will constitute another thread. Thanks for the replies guys

I very highly recommend the Michelin Pilot Super Sports. My V had the Goodyear Eagle GT when I bought it, no comparison.

What helps when you have highly varying temperatures is a nitrogen fill, its not good for anything else but it has a much lower expansion and contraction rate with temp changes. When I drove back and forth from phx to the mountains in the winter seeing a temperature differential of 80 degrees in a couple hours my truck lost and gained maybe 2-3 psi. 70 degrees in phx, -10 on mt humphries. I just wish I had a damn heater on my truck.