SuperLife Pre-Mix 50/50 Antifreeze protects your complete cooling system while improving performance and reducing maintenance. It is recommended for most ELC automotive cooling systems and is compatible with all premium quality cooling systems including GM DEX-COOL®. This product performs well for any of the following manufacturers requirements: Caterpillar EC-1, Detroit Diesel, Cummins, Navistar and Volvo. This product meets TMC RP 329, ASTM D-3306 and ASTM D-6210 service requirements.