1997 GMC Sonoma Owner's Manual - Page 319
1997 GMC Sonoma Manual
Page 319 highlights
I Short TripKity MaintenanceSchedule I 9,000 Miles (15 000 km) 0Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Control Service. Check readfront axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking. (See footnote **.) 0Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional information. (See footnote +.) 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 **.) DATE ACTUAL MILEAGE SERVICED B Y DATE ACTUAL MILEAGE SERVICED B Y