DEI Heater Hotter Cooling System Additive
Heater Hotter, 16 oz, Each
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Estimated Ship Date: Monday 11/9/2026 Would you rather pick it up?
Overview
DEI Heater Hotter Cooling System Additive
DEI Heater Hotter is formulated specifically to accelerate the transfer of heat from the engine to the cooling system in frigid climates that otherwise increase engine wear. DEI Heater Hotter's unique formula allows your vehicle's heater to warm up 50 percent faster, even in sub-zero temperatures. It is safe to mix with all types of antifreeze--simply add it to your radiator.
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Some parts are not legal for use in California or other states with similar laws / regulations
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