1996 Buick Century Owner's Manual - Page 303

Long Tripmighway Maintenance Schedule 82,500 Miles (137 500 km) Change engine oiland filter (or every 12 months, whichever occurs first). An Emission Control Service. 90,000 Miles (150 000 km) Change engine oil and filter (or every 12 months, whichever occurs first). An Emission Control Service. 0Lubricate the parking brake cable guides, underbody contact points and linkage.If equipped with grease fittings, lubricate the suspension and steering linkage (or every 12 months, whichever occurs first). 0Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation patternand additional information. During tire rotation, check brake calipers for freedom of movement. Refer to the appropriate GM service manual for proper caliper service procedures. 0Lubricate the parking brake cable guides, underbody contact points and linkage. If equipped with grease fittings, lubricate the suspension and steering linkage (or every 12 months, whichever occurs first). 0Replace air cleaner filter. An Emission Control Service. (Continued) I I DATE I I ACTUAL MILEAGE ISERVICED I BY: I 1 7-33