This universal top-up solution seamlessly blends with all antifreeze colours. As an antifreeze, it revitalizes your vehicle's original coolant, delivering top-notch performance in all conditions. Leave it in as a coolant and inhibitor, and enjoy up to 5 years of rust protection. With a patented clear formula, it's ready-mixed for convenience and safeguards all engine types, boasting superior corrosion resistance. Keep your engine protected year-round with CarPlan Demon Cool - the one coolant for all vehicles. It's your engine's best friend. Ready mixed with de-ionised water for added convenience  Winter protection down to -36°C  Patented clear formula  Protects all types of engines  Excellent compatibility with seals, hoses and plastic components  One coolant for all vehicles  Application:Whilst engine is cold, remove cap from radiator or expansion tank  Check antifreeze level  If necessary, just pour in Demon Cool to fill level as recommended by the vehicle manufacturer Replace cap