1997 Buick Century Owner's Manual - Page 304

Inflation -- Tire Pressure NOTICE: (Continued) If your tires have too much (overinflation), air you can get the following: 0 Unusual wear 0 Bad handling Rough ride 0 Needless damagefrom road hazards. When to Check Check your tires once amonth or more. Don't forget your compact spare tire. It should be at 60 psi (420 P a ) . The Tire-Loading Information label, which is on the driver's door edge, above the door latch, shows the correct inflationpressures for your tires when they're cold. "Cold" means your vehicle has been sitting for at least three hours or driven no more than 1 mile (1.6 km). NOTICE: Don't let anyone tell you underinflation or that f overinflation is all right. It's not. I your tires air don't have enough (underinflation), you can get the following: 0 Too much flexing 0 Too much heat 0 Tire overloading 0 Bad wear 0 Bad handling 0 Bad fuel economy. NOTICE: (Continued) How to Check Use a good quality pocket-type gage to check tire pressure. You can't tell if your tires are properly inflated simply by looking at them. Radial tiresmay look properly inflated even when they're underinflated. Be sure to put the valve caps back on the valve stems. They help prevent leaks by keeping outi t and moisture. dr