• Prestone® DEX-COOL® Extended Life Antifreeze/Coolant

    Prestone® DEX-COOL® Extended Life Antifreeze/Coolant is recommended and formulated for use in all vehicles that require DEX-COOL® coolant, as well as all other cars and light-duty trucks with aluminum radiators using extended life coolant.

    Drain — Draining removes loose rust and sediment from the radiator. Drain cooling system following owner’s manual. (illus. 1)

    Flush — Flushing the system cleans the engine block. Close radiator drain valve. Fill radiator with clean water leaving room for a quality cooling system flush/cleaner. Add flush/cleaner. Run engine with heater on high until engine reaches normal operating temperature. Stop engine. Allow to cool. Drain cooling system again. Close drain valve. (illus. 2)

    Fill — See owner’s manual for cooling system capacity. Install minimum 50%, maximum 70% Prestone Dex-Cool Approved Antifreeze/Coolant. Add distilled water to fill radiator. Run engine to normal operating temperature with heater on high. Shut off engine. Allow to cool. Check coolant level and add water or coolant again if necessary. Remove coolant from recovery tank and fill with 50/50 mixture of Prestone Dex-Cool Approved Antifreeze/Coolant and water. (illus. 3)

    WARNING: HARMFUL OR FATAL IF SWALLOWED. KEEP OUT OF REACH OF CHILDREN. CAUTION: Do NOT remove radiator cap when engine is hot. See owner’s manual for any special cooling system service instructions. Do not store antifreeze/coolant in open or unlabeled containers. Wash exposed skin thoroughly with soap and water after use.


    This patented formula has a concentrated blend of premium long-lasting inhibitors for extended performance, protecting against temperature extremes and the ravages of rust and corrosion. Prestone® DEX-COOL® Approved Antifreeze/Coolant has been approved by General Motors to be licensed as a DEX-COOL® product under the GM 6277M specification.

    Dex-Cool and GM are registered trademarks of General Motors Corporation and are used under license.