Zerex HT-12 Green Antifreeze - 1 Gallon

Zerex HT-12 Green Antifreeze - 1 Gallon

Latest OEM-Approved Si-OAT Protection for BMW, Ford, and Stellantis

Ensure your cooling system operates with the latest factory-level precision using Zerex HT-12. This green-colored formula is the state-of-the-art solution for vehicles requiring the BMW LC-18, Ford WSS-M97B57-A1, or Stellantis (Mopar) specifications. By combining the fast-acting protection of silicates with the long-lasting life of organic acid technology, HT-12 guards against the four main causes of cooling system failure: corrosion, leaking, deposits, and extreme temperature fluctuations. This full-strength concentrate allows you to customize your protection levels for your specific climate.

What Included in the Box:

- (1) 1 Gallon (3.78L) Bottle: Full-strength concentrate.

The Zerex Advantage

- Next-Generation Si-OAT Chemistry: Features the latest silicated organic acid technology, providing superior protection for aluminum components and high-pressure cooling systems.

- OEM Approved Performance: This is a factory-approved chemistry for leading manufacturers, ensuring your gaskets, hoses, and plastics remain safe from chemical degradation.

- Advanced Corrosion Inhibitors: Specifically formulated to prevent rust, scale, and cavitation in modern, high-tech engine blocks and radiators.

- 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.

- Long-Life Protection: Engineered to provide up to 5 years or 150,000 miles of service life, maintaining its anti-corrosion properties far longer than conventional coolants.

Product Specifications

- Part Number: 904685

- Color: Green

- Chemistry: Si-Organic Acid Technology (Si-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, ASTM D4985, SAE J1034

- Approvals: BMW LC-18, Ford WSS-M97B57-A1, Stellantis (Mopar)

Primary Vehicle Compatibility

- BMW (Select models from 2018+)

- Ford (Select models requiring HT-12 / Green)

- Stellantis / Mopar (Select Chrysler, Dodge, Jeep, and RAM models)

Precision Tip: This is a concentrate formula and must be mixed with distilled or deionized water before use. We recommend a 50/50 mix for most climates. Never use tap water for a flush or top-off, as the minerals can react with the Si-OAT inhibitors and cause scale buildup that restricts flow and reduces cooling efficiency.