Camco Boat Winterizer Engine Flushing System D-I-Y. The Do-It-Yourself Winterizer allows flushing and preparation of boat engine for winter storage with just five gallons of antifreeze and your flusher. Save time and money season after season. Great for technicians too. For front mounted raw water pump systems use the Flush Adapter sold separately. Specifications for Camco D-I-Y Boat Winterizer Engine Flushing System: Manufacturer: Camco Color: Black Package Contents: Camco D-I-Y Boat Winterizer Engine Flushing System Camco 65501: Boat Winterizer Engine Flushing System D-I-Y