1994 Oldsmobile Silhouette Owner's Manual - Page 210

Sewice & Appearunce Care Inflation-Tire Pressure The CertificatiodTirelabel which is on the rear edge of the driver's door shows the correct inflation pressures for your tires, when they're cold. "Cold" means your vehicle has been sitting at least for three hours or driven more than a mile. no When to Check Check your tires once amonth or more. Don't forget your compact spare tire. It should be at 60 psi (420 1tPa). How to Check Use a good quality pocket-type gage to check tire pressure. Simply looltingat the tires will not tell you the pressure, especially if you have radial tires which may look properly inflated even if they're underinflated. If your tires have valve caps, be sure to put them back on. They help prevent leaks by keeping out dirt andmoisture. \ x f NOTICE: Don't let anyone tell you that underinflation or overinflation is all right. It's not. If your tires don't have enough air (underinflation) you can get: Too much flexing Too much heat Tire overloading Bad wear Bad handling Bad fuel economy. If your tires have too much air (overinflation) you can get: Unusual wear Bad handling Rough ride Needless damage from road hazards. Tire Inspection and Rotation To make your tires last longer, have them inspected and rotated at the mileages recommended in the Maintenance Schedule. See Scheduled Maintenance Services in the Index. Use this rotation pattern. After the tires have been rotated, adjust the front andrear inflation pressure as shown on the CertificationlTire label. Make certain that all wheel nuts are properly tightened. See Wheel Nut Toque in the Index. 208