This is the strongest solution from Bar's Leaks for fixing engine head gasket leaks. It stops overheating, bubbles, white smoke, and mixing water with oil. Compatible with 50/50 radiator water and antifreeze, no need for draining or flushing. What does it fix? - Leaks in the engine head gasket and manifold. - Slight warping/cracks in the head or block. - Overheating and loss of radiator water. - Bubbles in the cooling cycle. - White smoke from the exhaust due to water entering the combustion chambers. - Mixing of water and oil. When is it effective? And when is it not? It is effective if your engine runs quietly for 15 minutes without overheating. It is not effective if the temperature rises before 15 minutes – there is a serious issue that requires mechanical work. Features - Enhanced with carbon fibers for higher strength and durability. - Works with all colors and types of 50/50 radiator water (OAT/HOAT… Green/Red/Blue…). - No need for flushing or removing the thermostat. - Suitable for gasoline and diesel. Warnings - Irritant to skin/eyes – use gloves and work in a well-ventilated area. - Keep away from children. - If heat or loss persists: check the water pump, radiator, fans, radiator cap, or presence of a large crack. Appropriate dosage - 4-cylinder: half a can (500 ml). - 6-cylinder: three-quarters of a can (750 ml). - 8-cylinder: a full can (1 liter). Full package size: 1 liter (33.8 fluid ounces). Shake the can well before use. Important conditions before use - Ensure the cooling cycle is clean (no salts/rust from using ordinary water). - Ensure the radiator is not clogged and that the fans and thermostat are working properly. - Not suitable if the engine heats up within less than 15 minutes of operation.