Super S Universal Antifreeze 50/50 is recommended for most conventional automotive and diesel engines and is compatible with all premium quality cooling system products regardless of make, model or original antifreeze color including green, yellow, orange, fuchsia or red. This product meets ASTM D-3306 and ASTM D-6210 for automotive service and ASTM D-4985 and RP-329 for heavy duty diesel service. Refer to your owner’s manual for cooling system capacity and recommendations.