Havoline Xtended Life Antifreeze/Coolant - 1 Gallon (Pack of 6) OEM Approval - Meets requirements of GM DEXCOOL under the GM6277M specification Wide service application - Recommended for use in Domestic, Asian and European automotive and light duty truck applications including newer hybrid vehicles Heat Transfer - Improved heat transfer when compared to silicate containing antifreeze/coolant products Contains ethylene glycol and 40 mg/kg denatonium benzoate Origin: USA OEM Approval - Meets requirements of GM DEXCOOL under the GM6277M specification Heat Transfer - Improved heat transfer when compared to silicate containing antifreeze/coolant products Contains ethylene glycol and 40 mg/kg denatonium benzoate Origin: USA