Starbrite - Power Pine Bilge Cleaner - 1 Gallon - 93800 Pine extract formula emulsifies oil, grease, fuel and transmission fluid. Features: Size - 1 Gallon Concentrated formula makes 96 gallons (32 fl. Oz. size) or 384 gallons (1 gallon size). Works in fresh or salt water. Environmentally safe, biodegradable. Leaves bilge smelling clean and fresh. Directions: Use one 1 fl. oz to every 3 gallons of water. Allow mixture to remain in bilge for at least one hour while running boat as normal. The boat's motion provides the "scrubbing" action. Pump out or drain afterwards. Use a higher concentration of Power Pine Bilge Cleaner if bilge is extremely dirty. Use once a month or as often as necessary to remove grime, dirt and odor.