1993 Buick LeSabre Owner's Manual - Page 258

Inflation - Tire Pressure The Tire-Loading Information label which on the rear is 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 leastthree for hours or driven no more than a mile. When to Check: Check your tires once a month or more. Don't forget your compact spare tire. should be at60 It psi (420 P a ) . How to Check: Use a good quality pocket-type gage to check tire pressure. Simply looking the tires will not at -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 and dirt moisture. 256