Re: 24:1 vs 50:1 in 64′ vs 65′ OMC engines

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August 15, 2018 at 10:47 pm #81248
Steve D
Participant

    You should be fine with 50:1 on a 60s 18 HP, especially if you’re hearing it from neighbors on a pristine lake. It’s just my personal preference to run 24:1 on my motors. And my personal experience with Synthetic is that it does help with less of an oil slick.