Motul Outboard Tech 4T 10W40 Boat Oil SpecificationsThis grade 10W40 synthetic oil has been specially formulated for 4 stroke petrol engines made by Honda Mariner Bombardier Mercury Selva Suzuki Tohatsu Yamaha... More precisely it is suitable for all outboard engines that require oil that meets the following standards NMMA FC-W FB-23656K API SJ / SG and it provides the following advantages :Better resistance at higher temperaturesDilution absorbtion in longer periods of idlingBetter resistance to shearing conserving the oil's properties at higher temperaturesExtreme anti corrosive properties (salt water saline mist wintering)Anti foaming propertiesReduced clogging of the oil filterNautical engines run in demanding conditions : often at full power in low temperatures increasing engine wear. In order to keep your nautical engines running smoothly Motul offer a wide range of specially formulated lubricants that guarantee the best protection.