Salt Shift Marine Engine Flush is specially formulated to effectively clean and flush out salt, debris and mineral build-up from marine engines, thereby preventing corrosion and extending engine life; its powerful salt-removal capabilities ensure that harmful deposits are thoroughly eliminated, which helps to maintain engine performance and longevity; the non-corrosive formula is safe for all marine engine components, making it a versatile choice for engine maintenance. An advanced, eco-friendly flushing formula that removes salt and sediment build up from your engine cooling system. Safe on all gaskets and rubbers, it protects your outboard motor or PWC engine making it run better for longer.