what is the cold weather tire pressure for the Z?

 

Same as the warm weather pressure, 35 psi for the 18" Touring.

 

Mine are at 35 when it is warm, but for the past two days when I first start up the car I get the annoying beeping for low PSI (28). That is going to get old quickly.

Should I put more air in them? Or should they be at 35 PSI when cold?

 

Put more air in them.

 

RGR that.

Thanks!

 

For any season, set to the desired pressure when the tire is cold and let it go up when it warms up (but don't let any air out when it warms up). It should cool off and go back to the set pressure.

WayneTN

 

I read somewhere that every 10 degrees the temp falls from when u filled up your tires, you will lose around 1lb. of tire pressure, can anyone confirm this? i can't remember where i read it.

 

Yes. It's a general rule of thumb because it depends on many factors, but this is a close estimate. I use it the opposite way to tell how hot the tires are running on the track.

I hate that low tire pressure alarm. It sounds like something is seriously wrong when all it really is, is that the tires are at 28 PSI. It seems to go off each time you open and close the door too. What's next, an inflatable dummy that beats you over the head when it reaches 25 PSI??

BTW: I had my tire pressures still set at 30 PSI cold from the track event the weekend before. The temperature dropped from 70*F to 50*F, so I lost 2 lbs. The magic formula works!

 

hahah sweet...yea from my personal experience the formula seems to be right to..

 

So let me get this clear. You should always have your pressure set to 35 when the tires are cold? Therefor, I should inflate my tires up 7 psi now because when I start the car for the first time in the morning the psi reading is at 28.

True or not?


Thanks again!

 

Correct! The optimum tire pressure is given on the car. This is the tire pressure that will yield the best characteristics, including tire wear, heat generation, responsiveness, and load carrying capacity.

BTW: Under-inflated tires were found to be a significant cause for many of the Explorer roll-overs!