Re: 1935 Johnson Aero built 300 fuel mixture

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August 20, 2017 at 11:28 pm #63535
kevinrude
Participant

    Follow up question on this thread: I also have a Johnson 300. I notice the oil specs above call for SAE#40 to mix with the gasoline. Is it OK to use standard marine two-stroke (TCW) or is SAE#40 appreciably different?

    Thanks!