1997 Buick Riviera Owner's Manual - Page 281

Inflation -- Tire Pressure The Tire-Loading Information label, which is located on the rear edge the driver's door shows the correct of inflation pressuresfor your tires when they're cold. "Cold" means your vehicle has been sittingat least for 1 three hours or driven no more thanmile (1.6 km). NOTICE: (Continued) If your tires have too much air (overinflation), you can get the following: 0 Unusual wear Bad handling Rough ride Needless damage from road hazards. When to Check Check your tires once a month more. or Don't forget your compact spare tire.It should be at 60 psi (420 Wa). NOTICE: Don't let anyone tell that underinflation or you overinflation is all right. It's not. If your tires don't have enoughair (underinflation), can you get thefollowing: 0 Too much flexing Too much heat 0 Tire overloading Bad wear Bad handling Bad fuel economy. NOTICE: (Continued) How to Check Use a good quality pocket-type gage to check tire pressure. You can't tellif your tires are properly inflated simply by looking at them. Radial tires may look properly inflated even when they're underinflated. Be sure to put the valve caps backthe valve stems. on dirt They help prevent leaks by keeping out and moisture. 6-44