1996 Chevrolet Blazer Owner's Manual - Page 317

Maintenance Schedule 1 Long TripMighway Definition Follow this maintenance schedule only ir none of the conditions from the Short Trip/City Maintenance Schedule is true. Driving a vehicle with a fully warmed engine under highway conditions causes engine to break oil down slower: Every 7,500 Miles (12 500 km): Engine Oil and rllter Change (or every 12 months, whichever occurs first). Chassis Lubrication (or every 12 months, whichever occurs first). Drive Axle Service. At 7,500 Miles (12 500 km) Then Every 15,000 Miles(25 000 km): Tire Rotation. Every 30,000 Miles (50 000 km): Fuel Filter Replacement. Air Cleaner Filter Replacement. Front Wheel Bearing Repack (2WD only) (or at each brake relining, whichever occurs first). Every 50,000 Miles (83 000 km): Automatic Transmission Service (severe conditions only). Every 60,000 Miles (100 000 km): Engine Accessory Drive Belt Inspection. Fuel Tank, Cap and Lines Inspection. Every 100,000 Miles (166000 km): Cooling System Service (or every 60 months, whichever occurs first). Spark Plug Wire Inspection. Spark Plug Replacement. Positive Crankcase Ventilation (PCV)Valve Inspection. These intervals onlysummarize maintenance services. Be sure to follow the complete maintenance schedule otl the following pages. -- 7-5