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Old 05-05-2012, 12:03 AM   #1
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"M" ratings

Are "M" ratings an industrial-wide standard or is it just a John Deere "thing"? Believe my JD 4045D has an "M2" rating.

http://www.deere.com/en_US/docs/zmag..._brochure.html
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Old 05-05-2012, 01:12 AM   #2
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Not sure but this link breaks down the meanings for John Deere

Marine Engines - Flint Power Systems




I just managed to open your link and found the same info.
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Old 05-05-2012, 01:25 AM   #3
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Thanks, CP. That site has more detailed info than JD's website.
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Old 05-05-2012, 06:55 AM   #4
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Every industrial.based,marine,,engine,will,ordinarily,ha ve,ratings of time,at,power.

These,will,vary,from,24/7,to,pleasure,boat10,or15min,frequently4,sometimes 5,ratings,

An,engine,with,out,this,info,is,probably,a,poor,ch oice,for,an,offshore,boat.

Spacebar died,so,pardon,the,commas.
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Old 05-06-2012, 11:20 AM   #5
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As FF says, every manufacturer of repute does the same as JD's M rating. In a boat though, more important than the rating are - (1) propped correctly, (2) decent fuel filtration and (3) good by the book maintenance.
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Old 05-06-2012, 11:44 AM   #6
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That's a JD think. I wonder what the M stands for????
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