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Re: T&T: Changing Oil while Underway, a question....

DL
Dave Legrow
Tue, Feb 28, 2006 3:43 PM

Ahh, the magic number has been reached and suddenly my oil
is now bad!  I don't think so.  Oil degradation is a
gradual process, involving many factors.  Our gensets, DD
6-71s which run 24/7, are run for about 500 hours (3 weeks)
instead of the 250 recommended, and the oil is sampled
afterwards.  Never has a sample ever come back as being
outside of tolerance except for soot levels on those with
high hours (~25,000 and up.) Those are due for rebuild
anyway!

On the other hand - if you sit in a marina, have numerous
starts, short running times, the worst possible
condensation conditions, or something mechanically not
right, your oil may be in need of change much earlier.

Dave Legrow
T'III
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Ahh, the magic number has been reached and suddenly my oil is now bad! I don't think so. Oil degradation is a gradual process, involving many factors. Our gensets, DD 6-71s which run 24/7, are run for about 500 hours (3 weeks) instead of the 250 recommended, and the oil is sampled afterwards. Never has a sample ever come back as being outside of tolerance except for soot levels on those with high hours (~25,000 and up.) Those are due for rebuild anyway! On the other hand - if you sit in a marina, have numerous starts, short running times, the worst possible condensation conditions, or something mechanically not right, your oil may be in need of change much earlier. Dave Legrow T'III Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
RB
Roger Bingham
Tue, Feb 28, 2006 3:56 PM

Hi All

In connection with this thread and a previous one about by-pass filters and
no scheduled engine oil changes I read all the stuff on Gulfcoast Filters
website. Very interesting.

I emailed them and asked how this affected engine manufacturers' warranties?

I never received an answer.

Does anyone know the answer?

Regards

Roger Bingham
France

Hi All In connection with this thread and a previous one about by-pass filters and no scheduled engine oil changes I read all the stuff on Gulfcoast Filters website. Very interesting. I emailed them and asked how this affected engine manufacturers' warranties? I never received an answer. Does anyone know the answer? Regards Roger Bingham France
DC
Dave Cooper
Wed, Mar 1, 2006 12:54 PM

Roger wrote:
In connection with this thread and a previous one about by-pass filters and
no scheduled engine oil changes I read all the stuff on Gulfcoast Filters
website....... asked how this affected engine manufacturers' warranties?>

Better to ask the engine manufacturers than the 'accessory' manufacturer,
IMO.

Most if not all the major diesel engine manufactureres offer by-pass filters
as options. This filter, as they state, will allow for extended oil drain
intervals IF combined with an oil sampling program.

So how's that for double speak??? In a nutshell if you have a by-pass
filter, and I personally think the GC filter is better than the factory
offered ones, then you need to establish a known change interval under your
operating conditions that keeps the oil at the manufactures require
condition level.

In many diesels the addition of make-up oil can keep it with-in these
guidelines for thousands of hours. OTH, if your engine uses no oil then you
need to add an additive package to keep the oil at the proper specs for your
engine.

With the advent of the tier 2 and EU/EC diesel engine specs all manufactures
are going to tighten up on what you can do to their engine while it is under
warranty. They are the one's on the hook for emmisions more than you. So
anyone fiddling/adding gear or otherwise breaking the 'seals' will cause
them to walk....and perhaps rightly so. They don't need Big Brother shutting
down an engine line cause someone added something and put the emissions out
of spec.

Some call this moving forward but others call it something else......<BG>

We have a Detroit Diesel 2 stroke whose manufacture was killed by the
watchdogs so perhaps I have a bit of bias. However, as went the DD 2
strokes, so goes all the natural 4 strokes and the non-computer operated
turbo diesel. Line em up and lay them down. Welcome the chips and the seals,
mates!

Dave & Nancy
Swan Song
Roughwater
Tortola, BVI

Roger wrote: In connection with this thread and a previous one about by-pass filters and no scheduled engine oil changes I read all the stuff on Gulfcoast Filters website....... asked how this affected engine manufacturers' warranties?> Better to ask the engine manufacturers than the 'accessory' manufacturer, IMO. Most if not all the major diesel engine manufactureres offer by-pass filters as options. This filter, as they state, will allow for extended oil drain intervals IF combined with an oil sampling program. So how's that for double speak??? In a nutshell if you have a by-pass filter, and I personally think the GC filter is better than the factory offered ones, then you need to establish a known change interval under your operating conditions that keeps the oil at the manufactures require condition level. In many diesels the addition of make-up oil can keep it with-in these guidelines for thousands of hours. OTH, if your engine uses no oil then you need to add an additive package to keep the oil at the proper specs for your engine. With the advent of the tier 2 and EU/EC diesel engine specs all manufactures are going to tighten up on what you can do to their engine while it is under warranty. They are the one's on the hook for emmisions more than you. So anyone fiddling/adding gear or otherwise breaking the 'seals' will cause them to walk....and perhaps rightly so. They don't need Big Brother shutting down an engine line cause someone added something and put the emissions out of spec. Some call this moving forward but others call it something else......<BG> We have a Detroit Diesel 2 stroke whose manufacture was killed by the watchdogs so perhaps I have a bit of bias. However, as went the DD 2 strokes, so goes all the natural 4 strokes and the non-computer operated turbo diesel. Line em up and lay them down. Welcome the chips and the seals, mates! Dave & Nancy Swan Song Roughwater Tortola, BVI