1996 GMC Sonoma Owner's Manual - Page 325

Long Tripmighway Maintenance Schedult 7,500Miles (12 500 km) 0Change engineoil and filter (or every 12 months, whichever occurs first). An Emissiol? Control Service. 0Check readfront axle fluid level and add fluid as needed. Check constantvelocity joints and axle seals for leaking.** 0Rotate tires. See "Tire Inspection and Rotation" in the Index for proper rotation pattern and additional information. 0Lubricate the front suspension, joints, ball steering linkageand transfer caseshift linkage, parking brake cable guides, propshaft splines,universal joints, brake pedal springs and clutch pedal springs at every oil change (or every 12 months, whichever occurs first). DATE ACTUAL MILEAGE SERVICED BY: 7-33