Castrol GTX Classic 20W-50 Conventional Motor Oil 5 Quarts Case of 3

Castrol Classic 20W-50 is suitable for use in automotive gasoline engines where the manufacturer recommends an API SJ or earlier specification 20W-50 lubricant. NOTE: NOT FOR USE IN MODERN ENGINES WITH CATALYTIC CONVERTERS OR WET CLUTCH APPLICATIONS Specialized additives containing high Zinc 1400 PPM Max and Phosphorus for extreme wear protection Formulated to maintain tough and thick oil film even under severe conditions Minimal foaming and high resistance to thermal degradation Compatible with gasoline and alcohol-based fuels