1998 GMC Sonoma Owner's Manual - Page 337

I ShortTrip/CityMaintenanceSchedule I DATE 33,000 Miles (55 000 km) 0 Change engine oil and filter (or every3 months, whichever occurs first). An Emission Contl-olService. 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 for leaking. (See footnote **.) I ACTUAL MILEAGE I SERVICED B Y 36,000 Miles (60 000 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 Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional information. (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 MILEAGE I SERVICEDBY I 39,000 Miles (65 000 km) 0 Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. DATE MILEAGE SERVICED B Y (Continued)