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Zerex Dex-Cool 50/50 Ready-to-Use Antifreeze Coolant 1 Gallon
Zerex from Valvoline is the #1 selling OEM-approved coolant brand. Zerex Dex-Cool Antifreeze/Coolant is proven to maximize engine life in passenger cars and light trucks, and is approved for use in GM, Ford, Chrysler and SAAB vehicles with cooling systems that require an orange antifreeze with Organic Acid Technology (OAT). Specially formulated with a patented carboxylate solution, Zerex is made for your car and protects better than industry standards against corrosion, leaking, deposits as well as freezing and boiling – the four main causes of cooling system failure, which is the leading cause of engine breakdown. Our OAT formula is silicate and phosphate-free. It protects from corrosion, scale and rust, so radiators, water pumps and other metal cooling system parts (including aluminum) stay clean and your antifreeze flows and functions properly. Zerex Dex-Cool Antifreeze/Coolant does not contain amines, borates, nitrates or nitrites. So whether you’re topping off your radiator or doing a complete system flush, trust Zerex Dex-Cool Antifreeze/Coolant. Made for your car. Made by Valvoline.
Price and availability captured 2026-08-21 and subject to change. The price shown on Amazon at the time of purchase applies.
0% above the 1-year average. Record low $21.98.
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Specifications, review intelligence and safety
- • Unsurpassed freeze protection and anti-boil performance outperforms industry standards
- • Organic acid technology resists rust, scale & corrosion while protecting all cooling system metals (including aluminum)
- • High-quality additives protect against leaks and won’t harm gaskets, hoses, plastics or original vehicle finish
- • Pre-mixed orange formula is ready-to-use in a 50/50 ratio with deionized water to protect all modern engine components from winter freezing (-34F) and summer boiling (265F).
- • 5 year/150,000 mile guarantee protects against engine failure caused by freeze-ups or boil-overs
- • Batch-tested in the lab, fleet-tested in the real world to help car and truck owners achieve optimal performance and maximize engine life.
- • Contains 30 – 50 ppm of denatonium benzoate as a bittering agent
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