For engines made of cast iron, aluminum or a combination of the two as well as cooling systems with aluminum and/or copper alloys. Particularly suitable for engines of the latest generation. For passenger cars, commercial vehicles, buses, agricultural machines as well as stationary engines and devices that require a radiator antifreeze of this quality. Combination of active agents based on ethylene glycol. With an ingenious OAT inhibitor package specially developed for modern aluminum high-performance engines. Provides outstanding protection against frost, corrosion and overheating and does not contain amines, nitrites, phosphates, borates or silicates. Adding the correct amount to the water provides reliable vehicle performance all year round.