Factory Certified Procedures:

For installing any after market kits such as engine coolant flushing and remote oil filter kits

engine coolant flushing QL NEUTRA-SALT System Designed for both freshwater- and saltwater-cooled engines that have an engine-driven raw-water pump.
coolant flushing QL NEUTRA-SALT Engine Flushing Kit The new QL Neutra-Salt Engine flushing system is now available for installation on all gasoline inboards and sterndrives.