The only way to safely run extended oil changes is to have analysis done. My
190D for instance had high iron levels when I first got it that cleared up
after a few oil changes.You could also potentially tell a blown or leaking head
gasket from glycol in the oil, you could tell air filter problems from the
presence of silica. High soot load would indicate improper combustion, the
presence of fuel in a gas engine can indicate injection problems but mostly
tells you when to change the oil.
Mostly I do it so I can get an idea what my OCI (oil change interval) needs to
be. Again I drive a lot and don't want to spend all my time changing oil if I
don't need to.
-Curt
From: rogerhga--- via Mercedes <mercedes@okiebenz.com>
To: Mercedes Discussion List <mercedes@okiebenz.com>
Cc: roger...@comcast.net
Sent: Saturday, February 13, 2016 8:28 AM
Subject: Re: [MBZ] Larry T Oil Analyses and Aircraft
Ok guys, enlighten me please. What value do you gain from an oil analysis? If
your engine is worn out, you probably know from the bad starting and lack of
power. If it has metal fragments, you would know from the valve chatter or
other noise. If you're using the wrong oil, you should know from reading all
the debates and info on this list. So, again, what would I gain from an oil
analysis?
Best Wishes,
Roger
Roger Hale
Dinnerware Classics, Inc.
Monroe, Ga.
770-267-0850
www.dinnerwareclassics.com
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