BLACKHORSE-RACING Universal 800ml Car Radiator Coolant Overflow Oil Catch Tank Cooling Catch Bottle Overflow Reservoir Heatsinks Aluminum Billet

100% Brand New, Never Been Used. 6061 Aluminum Ingot Using high quality thick aluminum ingot, strength enhancement, surface through anodic oxidation polishing, not easy to rust, long life, durable. Coolant Back Into Radiator When the coolant begins to cool, it contracts and the vacuum valve opens, causing the coolant flowing into the radiator coolant overflow tank to flow back into the radiator. How Does Radiator Coolant Overflow Tank Work? The radiator coolant overflow tank saves you money by preventing rust in the car's cooling system. When the engine is operating at its optimum performance, engine coolant is required to maintain it within the operating temperature range. Engine coolant absorbs heat from the engine. As the coolant heats up in the radiator, it begins to expand, causing an increase in pressure in the cooling system of the vehicle. When the coolant pressure in the radiator exceeds the pressure cap setting, the coolant is sealed through the pressure cap and flows through the overflow tube into the radiator coolant overflow tank. [Keep Engine Clean] Capture the oil and moisture in the helium and reduce the dirt and oil in the engine in the intake system. Keep the engine clean, increase horsepower and maintain engine life [6061 Aluminum Ingot] Made of high quality thick aluminum ingot, enhanced strength, anodized and polished, durable and long-lasting [Removable Cap] The fuel tank cap can be opened when the oil in the tank is full. Waste oil and dirt in the barrel can be poured out and reused [Quick Installation] Easy to install on the exhaust pipe of the original car, away from heat.