1995 GMC Sonoma Owner's Manual - Page 299

Maintenance Schedule I 27,000 Miles (45 000 km) 0 Change engine oil and filter (or every 3 months, whichever occurs first). An Enzission Control Service. 0 Lubricate the front suspension, ball joints, steering linkage and transfer case shift linkage, parking brake cable guides, propshaft splines, universal joints, brake pedal springs, and clutch pedal springs (or every 6 months, whichever occurs first). 0 Check readfront axle fluid level and add fluid as needed. Check constant velocity joints and axle seals for leaking,** I DATE I ACTUAL MILEAGE I SERVICED BY: 30,000 Miles (50 000 km) 0 Change engine oil and filter (or every 3 months, whichever occurs first). An Emission Cmtrol Service. Lubricate the front suspension, ball joints, steering linkage and transfer case shift linkage, parking brake cable guides, propshaft splines, universal joints, brake pedal springs, and clutch pedal springs (or every 6 months, whichever occurs first). Check readfront axlefluid level and add fluid as needed. Check constant velocity joints and axle seals forleaking.** 0 Drain, flush and refill cooling system (or every 24 months, whichever in occurs first). See "Engine Coolant" the Index for what to use. Inspect hoses. Clean radiator, condenser, pressure cap and neck. Pre.ssure test the cooling system and pressure cap. An Emission Control Service. 0 For 2-Wheel Drive vehicles only: Clean and repack the front wheel bearings (or at each brake relining, whichever occurs first). (Continued) 7-11