"M" ratings

[markpierce]

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/zma...upport/engine_literature/marine_brochure.html

 

[CPseudonym]

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.

 

[markpierce]

Thanks, CP. That site has more detailed info than JD's website.

 

[FF]

Every industrial.based,marine,,engine,will,ordinarily,have,ratings of time,at,power.

These,will,vary,from,24/7,to,pleasure,boat10,or15min,frequently4,sometimes5,ratings,

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

Spacebar died,so,pardon,the,commas.

 

[sunchaser]

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.

 

[Portuguese]

Mark

That's a JD think. I wonder what the M stands for????