ETG13-Coolant-Additive is a radiator corrosion inhibitor and anti-freeze agent based on ethylene glycol. It is free of any potentially hazardous substances such as nitrites, amines and phosphates. It is especially recommended for high-tech engines which require special high temperature aluminium protection. A concentration of 50% by volume is recommended throughout the year. It is miscible with most refrigerants based on ethylene glycol. Other additives prevent deposits and foaming of the coolant. ETG13-Coolant-Additive offers year-round protection against frost and corrosion during the entire service life of an engine.

Technical characteristics

Performance level

VW TL 774 J

Recommendation: Porsche / Audi / Bentley / Lamborghini / Seat / Skoda

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Safety data sheet ETG13 - EN
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colour - violet

ETG13-Coolant-Additive is available as Concentrate or ‘Ready to Use’ in 1.5 litre or 5 litre
We recommend maintaining a concentration of 50% (v/v) during all seasons.


The product does not have any negative effect on coolant hoses or cylinder head gaskets.

Mixed with the correct amount of water it can be used without any restrictions as a thermal transfer fluid in internal combustion engines made of cast iron, aluminium or a combination of these two metals, and radiator systems made of aluminium or copper alloys.

ETG13-Coolant-Additive is particularly recommended for light-alloy engines where the aluminium must be protected against the effect of increased temperatures.

Caution: Observe manufacturer’s instructions!