Looking for alternatives to the Tohatsu brand oil for my 2016 15hp 4-stroke motor. The manual states "Use NMMA FC-W certified 4-stroke engine oil below. 10W-30: is recommended for use in all temperature.25W-40: may be used at temperatures above 4°C (40°F)".
Since I operate it in some icy waters in the spring I want 10W-30, however all the local stores only carry synthetic oils. I've seen older posts saying not to use synthetic in the Tohatsu, but not sure why. Can anyone offer insight on this? Is a synthetic like Lucas (NAPA) 10W30 OK?
Thanks
Since I operate it in some icy waters in the spring I want 10W-30, however all the local stores only carry synthetic oils. I've seen older posts saying not to use synthetic in the Tohatsu, but not sure why. Can anyone offer insight on this? Is a synthetic like Lucas (NAPA) 10W30 OK?
Thanks