CTS V8-5.7L VIN P (2004)
Engine Oil: Fluid Type Specifications
Engine Oil
API Classification ......................................................................................................................................................................... Look for Starburst Symbol
Above -18° C (0° F) ................................................................................................................................................................... 10W-30, 5W-30 (preferred)
Below -20° C (-4° F) ................................................................................................................................................... 5W-30 synthetic (preferred) , 0W-30