Originally Posted by Jordan7373
Also one more question... Anyone heard anything bad about mixing air with nitrogen? I haven't mixed anything yet just wondering if it's a big deal?
You can. Nitrogen doesn't get affected by temperature changes as much as air. The pressures shouldn't change much due to cold or the heating of the tires.
Air does change a lot. Just look at your tires in cold climate. Most of the air that you get, such as your compressor isn't put through an air dryer, so it's moist. Over time it could cause rims to rust slightly inside. Also the moisture may create problems for your TPMS. They cost about $70 and have to be replaces every 5 to 10 years. I had one go bad just last summer and mines a 2010. They are a sealed unit. Replace only.
Lots of arguments for both side on this topic here.
Generally the alarm for the TPMS is for low pressure. 26 psi I believe? I filled mine to 51 once when I thought I had a flat. There was no alarm.
If it's sounding off outside of that, I'd take it in and have it checked.