Comma Xstream G40 Concentrated Antifreeze & Coolant - 1 litre. This antifreeze and coolant is formulated with Ethylene glycol and Si-OAT inhibitors to protect your engine from corrosion, overheating, and freezing. It offers a long service life of up to 5 years and includes a bittering agent to discourage accidental ingestion. Suitable for Audi, Bentley, Lamborghini, Mercedes-Benz, and Porsche.