1998 GMC Sonoma Owner's Manual - Page 349

I Short TripKity Maintenance Schedule I DATE 96,000 Miles (160 000 km) 0 Change engine oil and filter (or every3 months, whichever occurs first). An Emissioiz Control Service. 0 Lubricate chassis components (or every 3 months, whichever occurs first). (See footnote#.) 0 Check rear/front axle fluid level and add fluid as needed. Check constant velocity joints and axle seals forleaking. (See footnote **.) 0 Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional information. (See footnote +.) I MILEAGE I SERVICEDBY 1 I 99,000 Miles (165 000 km) 0 Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. Lubricate chassis components (or every 3 months, whichever occurs first). (See footnote#.) 0 Check readfront axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.> DATE I ACTUAL MILEAGE I SERVICEDBY I I 7-27