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Oil Cooler, Engine > < Engine - GM dexos 1 and dexos 2(R) Oil Specifications|Page 987
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Engine Oil: Capacity Specifications

Type......................................................................................................................................................................SG, SH(Motor Oil, API Service SG, SH)
CAPACITY, Refill:   
Code 5..................................................................................................................................................................................................3.4 liters     3.6 quarts
Code 6..................................................................................................................................................................................................3.1 liters     3.3 quarts
Code 8..................................................................................................................................................................................................3.5 liters     3.7 quarts
Capacity shown is without filter.  When replacing filter, additional oil may be needed
1989-90
Above 40°F (4°C)...............................................................................................................................................................................................................30‡
Above 0°F (-18°C).......................................................................................................................................................................................................10W-30
1991-94
Above 0°F (-18°C).....................................................................................................................................................................................................10W-30*
Below 50°F (10°C)........................................................................................................................................................................................................5W-30
‡May be used only if other recommended viscosities are not available
*Preferred 

Oil Cooler, Engine > < Engine - GM dexos 1 and dexos 2(R) Oil Specifications|Page 987