Superior protection for light and heavy-duty application. No need to add SCA’s . Its proprietary low silicate and phosphate and 2-EH free additive package meets the performance specification of : ASTM D-3306, HD ASTM D-6210, FORD WSS-M97B51, GM 1825M, GM 1899M, Chrysler MS 7170, Caterpillar EC-1, Detroit Diesel , Cummins engine, John Deere, International , Case, New Holland, Volvo Trucks, GE Locomotive, Freightliner, Ford ESE-M97B44-A, Mercedes, Komatsu, Navistar, and TMC RP329. Compatible with Hybrid ad OAT coolants. -62 F Full strength Concentrate and -34 F. This product is 50/50 Ready to Use.