Join Date: Feb 2010
Location: NW Chicago Suburbs
How accurate is the DIC tire pressure reading?
My '09 G6 GT DIC says my pressures are 28 lbs, but my hand gauge says they are 32-33 lbs. Using the hand gauge, my '96 Grand Prix went 126K mi on the original RS-A tires, recommended pressure of 30 lbs, so I thought it was pretty accurate. Would a 4-5 lb difference effect traction or wear?
Is there any specific brand tire gauge that is known to be very accurate? My hand gauge is just a standard chrome pen-like one from Wal Mart.
No, the above is not a misprint, the OE tires on my Grand Prix went 126,000 mi, and were replaced 10 years and 1 month after I bought the car. They were close, but not entirely down to the wear bars.
Thanks for your help.