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Re: 1951 wf-4 runs again

This is a 1951 engine, not a newer 60's or 70's model. The 16:1 ratio was for the inferior oils they had at the time. With good oil you can thin it to 32:1 without problems (reduces the rainbow oil slick this leaves behind), but it's better to err on the side of more oil since parts are scarce on these old mercury Wizards.

Re: 1951 wf-4 runs again

ok..thanks for reply..I will run the gal of 16 to 1 than switch to 25 to 1..k

Re: 1951 wf-4 runs again

Good job!

Re: 1951 wf-4 runs again

I run all my Wizards on 32:1 mix with Pennzoil TC-W3 oil without any problems. I would only use 16:1 in a pinch if I couldn't find any outboard motor oil.