1997 GMC Sonoma Owner's Manual - Page 308

Crankcase Capacity* Filter Quantity Engine with 2.2L (4.3 4.5 quarts L) "VORTEC" 4300 4.5 quarts (4.3 L) Automatic Transmission Capacity* Type 4L60E Fuel Tank Capacity QPe Quantity Standard Tank ..., ...18.5 gallons (70 L) A/C Refrigerant Capacity Quantity R-134a ...30 oz. or 2 lbs. (0.9 kg) Type Refill) Quantity and (Drain 5.0 quarts (4.7 L) Air Conditioning Refriqerants Not all air conditioning refrigeranrs are the same. If the air conditioning system in your vehicle needs refrigerant, be sure theproper refrigerant is used. If you're not sure, ask your GM dealer. *After refill, the level must be checked. Differential Fluid Axle Rear Front 4.0 pints (1.9 L) 2.6 pints (1.2 L) 6-70