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Robb @ British Tool

Jun 28, 2013 - 3:19PM

OMD

What does OMD stand for? It's on teh front fender of an untouched G3L I recently stumbled across.

email (option): britool51@hotmail.com

Ron from the land own under

Jun 28, 2013 - 3:24PM

Re: OMD

oil mineral detergent normally would have a viscosity would normally be on the oil tank why it's on a mudguard who knows but someone will
Ron FTLDU

email (option): grumpy.moran@gmail.com

Ian Wright

Jun 28, 2013 - 4:11PM

Re: OMD

And it's a post war oil grade...Ian

email (option): ian@wright52.plus.com

John Edwards

Jun 30, 2013 - 12:11AM

Re: OMD

For what it's worth, my WM has "OMD 50" stenciled in white across the oil tank, about 3 paint layers down....

I kept thinking it was some motor pool number; was finally told it was "Oil Mineral Detergent".

JDE

email (option): teladelujo@ msn.com

roger

Jun 30, 2013 - 9:17AM

Re: OMD

I remember when I was in the army in the 1960s the oil used for lorry/land rover engines was OMD 330

email (option): roger.beck@node6.com

Ron from the land own under

Jun 30, 2013 - 12:18PM

Re: OMD

Perhaps of more relevance to motorcycles during my service late last century (Australian Army) all small Engines I.E generators,welder s Etc and all B vehicles used OMD 110 which is Broadly equivalent to a mono grade SAE 30 oil

Cheers

Ron FTLDU

email (option): grumpy.moran@gmail.com

Ian Wright

Jun 30, 2013 - 1:15PM

Re: OMD

That's pretty thin oil for the hotter climates...Postwar OMD 330, used by UK forces, equates to an SAE50. I use 40 in the winter and 50 if it's a warm summer (which isn't often these days).
Wartime lubrication charts show '50 HD' for engine, box and primary....Ian

email (option): ian@wright52.plus.com

ron from the land down under

Jun 30, 2013 - 3:40PM

Re: OMD

Ian
I am Far to young to have any personal experience with an M20 Australian service but Small engines Generally air Cooled used in Stationary roles used this oil in all seasons but i would be the last person to advocate this use in a M20 indeed any Motorcycle just generally commenting on the term OMD.

Ron

FTLDU

email (option): grumpy.moran@gmail.com

trevor

Jul 1, 2013 - 3:31PM

Re: OMD

Ron from the land own under

They still use 30W oil in most Briggs engines.
Honda & Kholer specify 5W 30 or 10 W 40 depending upon the engine.
What you have to remember that most small engines are govened to about 80% of max revs.
Motorcycles are not.

email (option): wariron@tpg.com.au