Engine Flush, Cleaner & Corrosion InhibitorDissolves salt and leaves a protective sheen, guarding against future salt corrosion. The Salt Terminator mixer automatically dilutes the concentrate and siphons it through a standard garden hose. Connect the hose to your engine's flushing unit and add extra years of service to outboards, I/O's, jet boats and PWC's. No scrubbing required. Concentrate treatment ratio: 32:1.