GMC 2000 Sonoma Owner's Manual page 310

Wheels and Tires
Wheel Nut Torque . . . . . . . . . . .
Tire Pressure . . . . . . See the Certification/Tire label.
See "Loading Your Vehicle" in the Index.
Capacities (Approximate)
Cooling System Capacity*
Engine
2200 L4 Auto./Manual
"VORTEC" 4300 V6 Auto.
"VORTEC" 4300 V6 Manual
Crankcase Capacity*
Engine Quantity with Filter
2200 L4 4.5 quarts (4.3 L)
"VORTEC" 4.5 quarts (4.3 L)
4300 V6
6-68
-
100 lb ft (140 N·m)
Quantity
11.5 quarts (11.0 L)
11.7 quarts (11.1 L)
11.9 quarts (11.3 L)
Automatic Transmission Capacity*
Type Quantity (Drain and Refill)
4L60E 5.0 quarts (4.7 L)
*After refill, the level must be checked.
Differential Fluid
Axle Quantity
Rear 4.0 pints (1.9 L)
Front 2.6 pints (1.2 L)
Fuel Tank Capacity
Type Quantity
Standard Tank 18.5 U.S. gallons (70.0 L)