I never knew about the oil testing. Just ordered a test kit...thanks!
Tom B
At 03:26 PM 10/15/2020, you wrote:
This is an interesting, timely and informative
thread/discussion. We just recently bought
another boat with a large Diesel engine.The
former owner left extensive and detailed
documentation. In that documentation are the
results from engine oil analysis that he
performed every year, going back 6 years. Iâm
starting to try and educate myself on this and
will continue to do the sampling which comes up
this November. My initial take is that it is
important for spotting engine wear/maintenance trends.
Thanks to listers for all the insights.
Regards,
Dave
1982 C&C 37 - Ronin
On Oct 15, 2020, at 4:18 PM, Josh Muckley
<<mailto:muckl...@gmail.com>muckl...@gmail.com> wrote:
I sample my oil and sent for analysis. Costs
$20 but the knowledge of whether or not the oil
is good as well as what else could be wrong
with the engine is invaluable. For anyone who
cares about the environmental impacts, not
changing the oil is better for the environment
too. I use an over-sized oil filter and the
very best amsoil marine diesel engine
oil. This particular oil has a high TBN of
12. IIRC, TBN stand for total base number, you
know base... The opposite of acid. As acids
build up in the oil the TBN goes down. If the
person doing the analysis sees that the trend
suggests the TBN (or any of the oil specs) will
be too close to zero before the next oil
change, they modify their recommendations.
<https://drive.google.com/file/d/1MaBnvf4Fc9auz-p_Yw-yp5uh-Z7R4N__/view?usp=drivesdk>https://drive.google.com/file/d/1MaBnvf4Fc9auz-p_Yw-yp5uh-Z7R4N__/view?usp=drivesdk
Keeping moisture out of the oil is another key
to long life. A block heater keeps the oil
dry, the rings from sticking, the cylinders
from rusting and the boat warm enough to prevent the bilge from freezing.
Josh Muckley
S/V Sea Hawk
1989 C&C 37+
Solomons, MD
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Tom & Lynn Buscaglia
SV Alera
C&C 37+/40
Vashon Island WA
(206) 463-9200
www.sv-alera.com
October is the time to show your appreciation with a small contribution to this
list to help offset the costs. If you want to support the list - use PayPal to
send contribution -- https://www.paypal.me/stumurray Thanks - Stu