1994 Buick Century Owner's Manual - Page 242
1994 Buick Century Manual
Page 242 highlights
Tire Inspection and Rotation To make your tires lastlonger, have them inspected and rotated at the mileages recommended in the Maintenance Schedule. See "Scheduled Maintenance Services" in the Index. FRONT Use this rotation pattern. After the tires have been rotated, adjust thefront and rear inflation pressure as 'shown onthe Tire-Loading Information label. Make certain that all wheel nuts are properly tightened. See "WheelNut Torque'' inthe Index. 240