1999 GMC Sonoma Owner's Manual - Page 306

yellowblue Wheels and Tires Wheel Nut Torque ...100 lb-ft (140 N·m) Tire Pressure ...See the Certification/Tire label. See "Loading Your Vehicle" in the Index. Capacities (Approximate) Cooling System Capacity* Engine 2.2L L4 Auto./Manual "VORTEC" 4300 V6 Auto. "VORTEC" 4300 V6 Manual Crankcase Capacity* Engine Quantity with Filter 2.2L L4 4.5 quarts (4.3 L) "VORTEC" 4300 V6 4.5 quarts (4.3 L) Automatic Transmission Capacity* Type 4L60E Quantity (Drain and Refill) 5.0 quarts (4.7 L) Quantity 11.5 quarts (11.0 L) 11.7 quarts (11.1 L) 11.9 quarts (11.3 L) Differential Fluid Axle Rear Front Fuel Tank Capacity Type Standard Tank Quantity 18.5 gallons (70.0 L) Quantity 4.0 pints (1.9 L) 2.6 pints (1.2 L) A/C Refrigerant Capacity Type R-134a Quantity 1.75 lbs (0.79kg) *After refill, the level must be checked. 6-68