Prestone MAX 56/44 Antifreeze/Coolant, 1 gallon, is a ready-to-use, pre-mixed solution engineered for modern engines that demand reliable protection across seasons. The 56/44 formulation provides robust freeze protection down to -50°F and a maximum operating temperature of 229°F, helping prevent costly cold starts and overheating in heat waves.
Key benefits that set MAX 56/44 apart
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Pre-mixed 56/44 HOAT GO-5 formulation—no dilution required, which means faster fills and fewer dilution mistakes. This GO-5 HOAT blend balances corrosion inhibitors with long-life performance to guard cooling-system metals like aluminum and cast iron.
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Wide OEM and industry approvals—designed to meet and exceed a broad range of standards, including ASTM D3306, ASTM D4985, and WSS-M97B51-A1 (GO-5 HOAT) as well as WSS-M97B55-A (P-OAT) and GM-6277M. It’s formulated to align with real-world vehicle requirements.
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Extensive vehicle compatibility—compatible with vehicle specifications from BMW, Mercedes-Benz, Volvo, Honda, Nissan, Hyundai, Audi/VW, Ford, Fiat/Chrysler, and more. The product text reflects approvals and specs like BMW N 600 69.0, Mercedes-Benz Specification 325.0, Volvo Car 1286083, Honda Type 2, JIS K2234, Nissan Type L25500P, and several Fiat/Chrysler/MS family approvals.
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Reliable protection for today’s engines—the formula targets both cooling efficiency and long-term protection against rust, corrosion, and scale, helping extend the life of the radiator, water pump, heater-core, and gaskets.
Who should consider Prestone MAX 56/44
- Drivers with modern cars that require HOAT GO-5 or P-OAT specifications and OEM-grade coolant performance
- Car owners seeking a fast, no-dilution solution that reduces the guesswork of mixing and ensures proper protection
- Fleet managers aiming for consistency across a mixed-brand lineup with wide compatibility
Use cases and practical tips
- Seasonal maintenance: use during routine coolant refills or when flushing and filling the cooling system to maintain optimal protection levels.
- Maintenance simplicity: pour directly from the 1-gallon container without measuring or diluting, then monitor the cooling system per your vehicle’s manual.
- Performance assurance: crafted to maintain effective heat transfer and corrosion resistance across a broad temperature range, keeping engines cooler in summer and protected in winter starts.
With the convenience of a single-gallon, pre-mixed solution and a comprehensive set of OEM approvals, Prestone MAX 56/44 Antifreeze/Coolant is a practical, dependable choice for safeguarding your engine’s cooling system year-round. Choose MAX 56/44 to pair ease of use with proven, wide-ranging protection that aligns with your vehicle’s requirements.
