Rember the Tire Pressure - 986 Forum - The Community for Porsche Boxster & Cayman Owners

blue2000s · 04-14-2006, 02:41 PM

Quote:

Originally Posted by Rail26

I had my tires still pumped up from winter and it hit 90 degrees today. My tires were supposed to be at 37psi (Back) and 30psi (front). With the heat and spirited driving, I ended up at 45(back) and 35 (front). Winterizing is important...REMEMBER TO DE-WINTERIZE.

Tire pressures are only supposed to be adjusted when cold, unless you're at the track making dynamic adjustments

MNBoxster · 04-15-2006, 07:51 AM

Hi,

This is all very confusing. To winterize the Car and prevent Flat-Spotting the Tires, you are supposed to inflate them to 56PSI. Agreed that you need to let sufficient Air out in Spring to reach normal Driving Pressures, but I don't understand how you ended up in the 40's with your pressure unless you didn't fully inflate them, or you have some leaks to account for...

Happy Motoring!... Jim'99

Rail26 · 04-15-2006, 08:16 AM

My car is a daily driver...even in the winter. We do not get snow here...The only point I was trying to make was to keep my tires at 37 psi for the cold temps I had to put more air in and I forgot to take it out as the weather warmed up. Thats it....

blue2000s · 04-15-2006, 10:09 AM

Quote:

Originally Posted by Rail26

My car is a daily driver...even in the winter. We do not get snow here...The only point I was trying to make was to keep my tires at 37 psi for the cold temps I had to put more air in and I forgot to take it out as the weather warmed up. Thats it....

Pressure will go up when you heat up the tires from driving. You're only supposed to check and adjust your tire pressure to the factory specs when the car hasn't been used so that the air temperature is the same as ambient.