Zerex Dex-Cool Orange Coolant - 1 Gallon

Zerex Dex-Cool Orange Coolant - 1 Gallon

OEM-Approved Long-Life Protection for GM, Ford, and Chrysler

Ensure your cooling system operates with factory-level precision using Zerex Dex-Cool. This orange-colored formula is the only engine coolant to be GM-approved for use in all General Motors vehicles from 1995 and newer. By utilizing a NAP-free (Nitrite, Amine, Phosphate-free) chemistry, it prevents the formation of hard water scale and protects against the four main causes of cooling system failure: corrosion, leaking, deposits, and extreme temperature fluctuations. Whether you are performing a full system flush or a seasonal service, Zerex Dex-Cool offers the exact chemical profile needed to maintain engine health and cooling efficiency for up to 5 years.

Available Variants:

- Dex-Cool Concentrate (ZXEL1): A full-strength formula that must be mixed with distilled water. This is the most cost-effective option for a complete system flush or for users who need to customize their freeze protection levels for extreme climates.

- Dex-Cool 50/50 Pre-Mix (ZXELRU1): A ready-to-use solution pre-diluted with demineralized water. Perfect for quick top-offs or for users who want to avoid the mess and guesswork of mixing their own ratio.

The Zerex Advantage

- GM Approved Chemistry: The only GM-approved formula for the Dex-Cool standard (DEX-COOL B440-2091), ensuring total compatibility with factory gaskets, seals, and hoses.

- Organic Acid Technology (OAT): A silicate-free and phosphate-free formula that provides up to 5 years or 150,000 miles of protection by forming a robust protective layer on metal surfaces.

- Advanced Aluminum Protection: Specifically formulated to protect modern aluminum engines from high-temperature pitting and cavitation, a common cause of water pump failure.

- Unsurpassed Thermal Stability: Provides a massive safety margin against summer boil-overs and winter freeze-ups, maintaining a stable operating temperature even under heavy loads.

- Deposit Control: Specialized additives guard against hard water scale and deposits, ensuring that your radiator and heater core remain clear and functional.

Product Specifications

- Color: Orange

- Chemistry: Organic Acid Technology (OAT)

- Freezing Protection: Down to -34 degrees F (at 50/50 ratio)

- Boiling Protection: Up to 265 degrees F (at 50/50 ratio)

- Standards: Meets ASTM D3306, SAE J1034, GM 6277M

- Approvals: GM 6277M, Ford WSS-M97B44-D, Chrysler MS-12106

Primary Vehicle Compatibility

- General Motors (Chevrolet, GMC, Buick, Cadillac 1995+)

- Ford (Select models requiring Orange OAT)

- Stellantis / Chrysler (Select models requiring OAT)

- Select European and Asian models requiring Dex-Cool compatible fluid

Precision Tip: When using the Concentrate variant, always mix with distilled or deionized water rather than tap water to prevent mineral buildup. Avoid mixing Dex-Cool with traditional green (IAT) coolants, as the chemical conflict can lead to "sludging" that clogs radiators and heater cores. If you are switching from a different coolant type, a full system flush is essential.