... winderGrade of lubricating oil: Sae 10w-30/40(Above grader cc)Grade of lubricating oil in gear case: Api gl5:sae80 ... fire, and it has high fuel consumption for petrol fuel, we started to research and develop the diesel outboard motors, at ... last, we developed and produced the FH4-4HP, FH6-6HP, FH9-10HP ...