Discover the top ethylene glycol-based coolants and radiator fluids available for vehicles. This ranking focuses on high-performance antifreeze solutions, including those with OAT (Organic Acid Technology) and PSi-OAT corrosion protection. Find suitable options for modern aluminum engines, ensuring optimal engine temperature regulation and protection against freezing and overheating. Explore various formulations, including concentrates and ready-to-use products, from leading brands that comply with European and international standards for superior engine care and longevity.
Provides excellent protection against corrosion of all metals
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This long-life OAT coolant is highly recommended for its robust, environmentally conscious protection for modern engines, especially those with aluminium components. It offers extended service intervals, making it a cost-effective and reliable choice.
Prevents foam formation
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With its technical file updated in March 2026, this OAT coolant is a top recommendation for its long-lasting protection against corrosion and extreme temperatures. It's suitable for a wide range of modern vehicles, ensuring optimal performance and preventing mechanical breakdowns.
Long-life ready-to-use antifreeze coolant
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Its OAT formulation ensures extended service life and superior corrosion protection for modern engines, particularly those with aluminium components. This aligns with current OEM requirements and makes it a highly effective choice for 2026.
Outstanding coolant protection
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This hybrid technology (HOAT) concentrate offers robust protection for a wide range of modern engines, including those requiring G12+ specifications. Its flexibility of dilution makes it a versatile and cost-effective option for various vehicle types.
Excellent heat conductivity properties
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Its G12+ OAT formulation provides long-term, high-performance protection for modern engines, particularly those with enhanced heat dissipation requirements. This environmentally conscious product offers extended service life, making it a reliable choice for 2026.
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Excellent protection against corrosion, erosion, and cavitation
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This very long-life OAT formulation and broad OEM approvals make it a highly reliable and versatile choice for diverse vehicle types. It offers superior protection against corrosion, erosion, and cavitation, along with environmental benefits.
Fast, effective protective properties
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This Si-OAT concentrate is specifically designed for the latest generation of Euro 6 engines, offering advanced and very long-lasting protection. Its targeted formulation makes it highly relevant for newer vehicles in Spain, ensuring optimal performance.
Silicate-free long-life antifreeze
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This G12+ concentrate offers long-life, high-performance protection for a wide range of European vehicles, particularly those from the VAG group. Its excellent compatibility and corrosion resistance make it a reliable choice for modern liquid-cooled engines.
Offers protection against corrosion and cavitation
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Its G12++ Si-OAT technology offers enhanced and extended protection, particularly for modern engines with diverse metal components. This makes it a robust choice for demanding conditions and ensures long-term reliability.
Triple protection against corrosion, frost, and overheating
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Glysantin G30 is a well-established OAT coolant known for its premium quality, broad OEM approvals, and suitability for modern engines, including EVs. Its triple protection against corrosion, frost, and overheating makes it a reliable choice.
Premium-grade coolant
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Glysantin G40's Si-OAT technology provides advanced, long-term protection for modern engines, particularly those with aluminium components. It's a sustainable choice for a wide range of vehicles, including EVs, corresponding to VW TL 774 G (G12++).
Long life ready to use cooling liquid
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This hybrid technology (HOAT) ready-to-use coolant offers reliable, long-lasting protection against extreme temperatures for a diverse range of vehicles and equipment. Its pre-mixed convenience makes it an easy and effective solution.
Protection down to -37 °C
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This G12++ Si-OAT coolant offers advanced, direct-use convenience with exceptional long-life protection and broad OEM compliance. It's suitable for both passenger and heavy-duty vehicles, making it a versatile and high-performance choice.