5-way protection: Freeze-up; Boil-over; Rust, Corrosion; Scale build-up; Sludge clogging. Meets or exceeds the following specifications: ASTM-D3306, ASTM-D4340, SAE J1034, GM-1825M, Ford ESE M97B44-A, Chrysler MS-7170, GM-1899M. Plus meets heavy-duty low-silicate requirements including: ASTM-D4985, Cummins 90T8, TMC RP-302B, SAE J1941, Caterpillar, Mack Truck, John Deere H24B1/C1, Volvo/GM Heavy Truck. For Automobiles and Heave-Duty Diesel Engines Universal Low Silicate Formula Corrosion/Scale Protection for All Engine Metals, Including Aluminum Compatible with All Conventional New Car Antifreeze