DEi Radiator Relief. This coolant additive helps eliminate the problems experienced with high operating temperatures found in competition vehicles. This proven additive from DEi can reduce the coolant temperature by as much as 15˚C and reduce your engine's warm up time by half. Compatible with all types of antifreeze. Supplied in a 473ml bottle, suitable to treat 15 litres of coolant.

• Reduce engine coolant temperatures by upto 15˚C
• Shown to reduce your engines warm up time by half
• 1 bottle is suitable to treat 15 litres of coolant