Comma's Xstream G30 Antifreeze Concentrate is crafted with Ethylene glycol and fortified with OAT inhibitors to ensure your engine stays safe from rust, heat, and frost. It's designed to perform for up to 5 years. For safety, it's treated with a bittering agent to reduce the risk of someone accidentally drinking it. This product is a 1-litre bottle of concentrated antifreeze and coolant, suitable for various vehicles including Audi, Bentley, DAF, Jaguar, and Lamborghini. It features OAT inhibitors for long-lasting protection and has a violet colour.