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post #18 of Old 01-28-2013
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Re: Yanmar 3GM30F HP one-hour rating (??)

I have a 3gm30 on my Caliber 33 and would never run at 3400 rpm "all day". I tend to run at around 2800 but that is well above the "max distance gained per gallon of fuel burned" rpm's - That is somewhere around 2000 rpm's.
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