1997 Buick Regal Owner's Manual - Page 347

Maintenance Schedule Short TripKity Definition Follow the Short TripKity Maintenance Schedule any if one of these conditionsis true for your vehicle: Most trips are less than 5 to 10 miles (8 to 16 km). This is particularly important when outside temperatures are below freezing. 0 Short Trip/City Intervals Every 3,000 Miles (5 000 k ) Engine Oil and Filter m: Change (or 3 months, whichever occurs first). Every 6,000 Miles (10 km): Tire Rotation. 000 Every 12,000 Miles (20 km): Passenger 000 Compartment Air Filter Replacement. Every 15,000Miles (25000 k ) Air Cleaner Filter m: Inspection, if driving in dusty conditions. Every 30,000 Miles (50 000 km): Air Cleaner Filter Replacement. FuelTank, Cap and Lines Inspection. Supercharger Oil Check (or every36 months, whichever occurs first)(3.8L Code 1 engine only). Every 50,000 Miles (83 000 k ) Automatic Transaxle m: Service (severe conditions only). Every 60,000 Miles (100000 km):Engine Accessory Drive Belt Inspection. Every 100,000 Miles (166 km): Spark PlugWire 000 Inspection. Spark Plug Replacement. Every 150,000 Miles (240 k ) Cooling System 000 m : Service (or every 60 months, whicheveroccurs first). These intervals only summarize maintenance services. Be sure to follow complete maintenance schedule the on the following pages. 7-5 I - Most trips include extensive idling (such as frequent driving in stop-and-go traffic). Most trips are through dusty areas. You frequently tow a trailer or use a carrier top of on your vehicle. (With some models,you should never tow a trailer. See "Towing a Trailer"in the Index.) 0 0 If the vehicle is used for delivery service, police, taxi or other commercial application. One o the reasons you should f follow this scheduleif you operate your vehicle under anythese conditions o f is that these conditions cause engine oilbreak to down soonel: