so, which "additives" make oil work in an engine used to drive a propeller are
not in oil in an engine used to drive a driveshaft?

"Gene Kearns"
Date: 10/11/2004 8:50 AM Eastern Daylight Time
Message-id:

On 09 Oct 2004 23:39:00 GMT, (JAXAshby) wrote:

Can you produce *ANY* data that oils promoted by *ANY* of the marine
engine manufacturers is unaltered, rebottled automotive oil?


That is not an answer to the question posed.

That oil grade level (SG, SH, SJ) on the bottle.

Incorrect.

SG and SH classifications are obsolete. SJ is for engines prior to
2001 and SL is for all gasoline and propane engines (using detergent
oil). SL is current for gasoline engines... both straight weight and
multi-vis (dino and synthetic).

The API "S" and "C" classifications merely address a minimum
performance level. Oil can contain *ANY* additives, meet a minimum
performance, and receive the SJ or SL classification. Thus, any sort
of additive can be added to a SL oil and if it doesn't do anything to
reduce the ability of the oil's ability to reach the spec... it is
still a legal SL oil.

--



Grady-White Gulfstream, out of Southport, NC.

http://myworkshop.idleplay.net/cavern/ Homepage
http://www.southharbourvillageinn.com/directions.asp Where Southport,NC
is located.
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Pictures at My Marina
http://www.thebayguide.com/rec.boats Rec.boats
at Lee Yeaton's Bayguide