1996 GMC Safari Owner's Manual - Page 328

I Short TripKity Maintenance Schedule I 100,000 Miles (166 000 km) 0Drain, flush and refill cooling system (or every 60 months since last service, whichever occurs first). See "Engine Coolant" in the Index for what to use. Inspect hoses. Clean radiator, condenser, pressure cap and neck. Pressure test cooling system and pressure cap. An Emissiorl Corqtrol Service. 99,000 Miles (165 000 km) 0Change engine oil and filter (or every 3 months, whichever occurs first). AFI Ernission Control Service. 0Lubricate chassis components;see footnote # (or every 3 months, whichever occurs first). 0Check readfront axle fluidlevel and add fluid as needed. Check constant velocity joints and axle seals for leaking.** 0Inspect spark plug wires. A n Emissioll Control Sel-vic*e. 0Replace spark plugs. A I IEmission Control Service. 0 Inspect Positive Crankcase Ventilation (Pcv)valve. An Emissioll Control Service. DATE ACTUAL MILEAGE SERVICED B Y 7-28