Forget BOTH, especially the tire sidewall. The sidewall states MAXIMUM pressure the tire is rated for... Go to GM tire pressure label visible when you open your left front door. This will tell you the recommended tire pressure for YOUR car. Pressures are quoted here when "cold." Cold in this sense means check tires first thing the next day after car has sat overnight or 4-6 hours after last driven. As you drive, the tires warm which will increase their pressure, thus giving you an inaccurate "cold" pressure reading. Check your owner's manual to verify this information.
The XFE may have specific pressures to maintain its fuel economy status.
If You're SCARED... SAY You're SCARED...
Last edited by 423; 09-06-2009 at 11:32 AM.