1996 Buick Regal Owner's Manual - Page 295

I Short Trip/City Maintenance Schedule I 18.000 Miles (30 000 km) 0Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. 21,000 Miles (35 000 km) 0Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. 0Lubricate steering ball joints (or every 6 months, whichever occurs first). 0Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional information. During tire rotation, check brake calipers for freedom of movement. Refer to the appropriate GM service manual for proper caliper service procedures. DATE ACTUAL MILEAGE SERVICED BY: DATE ACTUAL MILEAGE SERVICED B Y