1998 Chevrolet Blazer Owner's Manual - Page 371

Long Tripmighway Maintenance Schedule 0 Check readfront axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.) 0 Change automatic transmission fluid and filter if the vehicle is mainly driven under one ormore of these conditions: - In heavy city traffic where the outside temperature regularly reaches 90°F (32 C) or higher. - In hilly or mountainous terrain. - When doing frequent trailer towing. - Uses such as found in taxi, police or delivery service. If you do notuse your vehicle under any o these conditions,change the fluid f and filter every 50,000 miles (83 000 km). 0 Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional information. (See footnote +.) O 82,500 Miles (137 500 km) 0 Change engine oil and filter (orevery 12 months, whichever occurs first). An Emission Control Service. DATE 0 Lubricate chassis components (or every (See footnote #.) 12 months, whichever occurs first). (Continued) 7-35