nobbyv t1_j7024mt wrote on February 3, 2023 at 2:29 AM

Reply to comment by billintreefiddy in PSA: Check your tire pressure by movdqa

Nitrogen-filled tires still drop pressure as temps drop.

ThisIsNotTuna t1_j71sdeg wrote on February 3, 2023 at 1:40 PM

Not to mention the fact that "normal" air is already mostly nitrogen anyway, so...this point is moot.

billintreefiddy t1_j702jpy wrote on February 3, 2023 at 2:32 AM

Not nearly as much. I’ve had my truck a year with nitrogen and they’ve only fluctuated 1-2 psi.

nobbyv t1_j704tx7 wrote on February 3, 2023 at 2:50 AM

It’s true they don’t drop as much. They still drop enough to be significant. Nitrogen filled tires drop pressure by 1.9% for every 10F drop in temperature. A tire filled to 35PSI at 90F will be down almost 7PSI at the -10F temps we will see on Saturday. If you’ve only noticed a 1-2PSI change over temp, you’re either not driving it during wide temp fluctuations or are not paying attention.

billintreefiddy t1_j704x5o wrote on February 3, 2023 at 2:51 AM

It simply is true. It’s a 2022 vehicle and I leave the tire pressure up on display at all times.

nobbyv t1_j71m5uv wrote on February 3, 2023 at 12:45 PM

Ah. I see. Then your truck must exist in a realm that uses a different set of physics than the ones we use here.