Engine Oil

Type SG
CAPACITY, Refill:
6-cyl. 292 eng. 4.7 Liters 5.0 Quarts
8-cyl. 350 3.8 Liters 4.0 Quarts
8-cyl. 454 4.8* Liters 5.0* Quarts
8-cyl. 454 5.7 Liters 6.0 Quarts
*1986 K30, -35 pickup only. Capacity shown is without filter. When replacing filter, additional oil may be needed
1986:
Above 40°F (4°C) 30
Above 20°F (-7°C) 20W-20
Above 10°F (-12°C) 15W-40
Above 0°F (-18°C) 10W-30*
Below 60°F (16°C) 5W-30
1987:
Above 40°F (4°C) 30
Above 0°F (-18°C) 10W-30*
Below 60°F (16°C) 5W-30
*Preferred