1997 Chevrolet Astro Owner's Manual - Page 330

Maintenance Schedule Follow this maintenance schedule only if none of the conditions fromthe Short TripKity Maintenance Schedule is true. Do not use this schedule if the vehicle is used for trailer towing, driven in a dusty area or used off paved roads. Use the Short TripKity schedule for these conditions. Driving a vehicle with fully warmed engine under a highway conditions causes engine oil break to down slower: Every 7,500 Miles(12 500 km): Engine Oil and Filter Change (or every I2 months, whichever occurs first). Chassis Lubrication (or every 12 months, whichever occurs first). Drive Axle Service. Tire Rotation. Every 15,000 Miles (25 000 km): Automatic Transmission Service (severe conditions only). Every 30,000 Miles (50 000 km): Fuel Filter Replacement. Air Cleaner Filter Replacement. Front Wheel Bearing Repack (2WD only) (or ateach brake relining, whichever occurs first). Automatic Transmission Service (normal conditions). Every 60,000 Miles (100000 km): Engine Accessory Drive Belt Inspection. Fuel Tank, and Lines Inspection. Cap Every 100,000 Miles (166000 km): Spark Plug Wire Inspection. Spark Plug Replacement. Positive Crankcase Ventilation (PCV) Valve Inspection. Every 150,000 Miles(240 000km): Cooling System Service (or every 60 months, whichever occurs first). These intervalsonly summarize rncrintenance services. Be sure to follow the complete maintenance schedule on the following pages. 7-6