1997 Buick Regal Owner's Manual - Page 367

I Short Trip/City Maintenance Schedule I 96,000 Miles (160 000 km) 17 Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. (See footnote *.) 17 Replace passenger compartment air filter. 17 Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional information. (See footnote +.) 93,000 Miles (155 000 km) 0Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. (See footnote *.) h DATE ACTUAL MILEAGE SERVICED B Y DATE ACTUAL MILEAGE SERVICED B Y