Prestone® DEX-COOL® 50/50 is formulated for use in ALL vehicles that require DEXCOOL Antifreeze/Coolant. Prestone® DEX-COOL® 50/50 can also be used in ALL other cars and light duty trucks that use extended life coolant. Prestone DEX-COOL 50/50 is the featured factory-filled blend used by major auto manufacturers. The blend contains 50% antifreeze for emperature and corrosion protection and 50% demineralized water for vital heat transfer. Prestone DEX-COOL meets or exceeds ASTM D3306, ASTM D4985 and SAE standards for corrosion protection and meets General Motors GMW3420 (GM 6277M)property and performance specification requirements for FCA (Fiat/Chrysler) MS12106 (MS-7170 & MS-9769). Prestone DEXCOOL Antifreeze/Coolant has been approved by General Motors to be licensed as DEX-COOL product under the GM