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AMSOIL FOR A 250 SHO
I hear everyone say Amsoil is great synthetic oil. Can i put it in my 250 sho and not void the warranty
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Are you asking about engine oil or lower unit oil? Because I’ve wondered the same thing. I just changed the oil in my 2017 SHO and used Amsoil marine engine oil. As long as the oil meets Yamaha’s requirements I don’t see how there could be an issue. Amsoil’s engine oil meets Yamaha’s fwc requirements. Their lower unit oil tho is 75w-90 api gl 5 and the sho hd oil is 80w-90 api gl 5. So with that I’ve stuck with the Yamaha lower unit oil. I would like to know if there is synthetic lower unit oil out there that Yamaha’s requirements. I haven’t been able to find it
Last edited by 1GThompson; 10-12-2019 at 07:52 AM.