1998 GMC Sonoma Owner's Manual - Page 338

I Short Trip/City Maintenance Schedule 1 39,000 Miles (65 000 km) (Continued) 0 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 footnotea*,) 42,000 Miles (70 000 km) 0 Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. 0 Lubricate chassis components (or every 3 months, whichever occurs first). (See footnote #.) Check readfront axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.) 0 Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional information. (See footnote +.) I DATE MILEAGE SERVICED B Y I 45,000 Miles (75 000 km) 0 Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. 0 Lubricate chassis components (or every 3 months, whichever occurs first). (See footnote#.) 0 Check readfront axle fluidlevel and add fluid as needed. Check constant velocity joints and axle sealsfor leaking. (See footnote'ic*.) DATE 7-16