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#71045
Pete
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    quote Chris_P:

    Be aware of WHICH motor you are running as well. Racing motors for one obviously require more oil than trolling motors do.

    That’s right on race engines, more revs especially sustained high rpm, more oil is needed to keep the reserve of oil available. In my race engines Merc 25ss and Yamato I use 16:1 and run them in the low 7000 range. Type of use determines the oil ratio needed.