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Old 09-18-2015, 06:09 PM   #21
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I use the CAT SOS sample kits all the time. I also have the CAT pump that the bottles screw into for sample taking. Using the pump and throwing away the sample tube on each sample insures no cross contamination. I think we pay like $12.00 per kit with the prepaid mailer. Sometimes I mail sometimes I just drop them off at the local location for their truck to pick up. Results by email in just a day or two. Real cheap insurance. I'm always amazed at how long you can go before you need to change the oil.
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Old 09-18-2015, 09:29 PM   #22
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Ditto here.


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Old 09-18-2015, 09:53 PM   #23
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To get a true picture of how your oil is holding up you need to make sure the analysis gives you things like TAN = Total Acid Number, TBN = Total Base Number, etc. not just particulate counts.
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Old 09-18-2015, 11:51 PM   #24
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There was a significant thread about this, it included a video of someone dissecting a number of branded filters and grading them on his view of their qualities. Finding it might help.
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Old 09-19-2015, 12:20 AM   #25
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Found this from February this year, but not the vid I had in mind, which I think figured in yet another discussion on this issue. Brand Of Oil And Filter
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Old 09-19-2015, 12:02 PM   #26
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There was a significant thread about this, it included a video of someone dissecting a number of branded filters and grading them on his view of their qualities. Finding it might help.
BruceK

Here are links to 2 videos - not sure if these are the ones you referred to





I also found this filter supplier website that has a pretty comprehensive comparison tool - provides some data on filters vs qualitative comments found on most sites / videos.

Fleet Filter Comparisons
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Old 09-19-2015, 07:04 PM   #27
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Buy them from
http://www.sbmar.com/tonys-tips.php.
You will get the correct filter at a great price.
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Old 09-20-2015, 11:13 AM   #28
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The NAPA filters we use on all our vehicles are re-branded WIX filters. On the three diesels in our PNW cabin cruiser we use Baldwin oil and fuel filters. The primary fuel filters are Racors.
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Old 09-22-2015, 02:11 PM   #29
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If you don't have Cats, use Blackstone labs; they understand all the engines and specs. I like to take a sample at every oil change, a great and cheap way of tracking aging and fending off some catastrophes. A one-off sample doesn't really tell you much unless something Really Bad has already happened.

Blackstone Labs
Thanks for sharing. I was getting ready to search for a place.
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Old 09-22-2015, 02:54 PM   #30
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If you have never seen an oil sample report you can see one here with a little explanation of what it's all about. Oil Analysis
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Old 09-23-2015, 07:22 AM   #31
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I've always used Cummins Fleetguard oil filters on my Cummins 6BT's but they are expensive and not commonly found. I was thinking of using a comparable NAPA filter.
Comments?
That's interesting because around where I am (Connecticut) Fleetguard is easy to find and one of the lower cost filters. I had Cummins trucks and marine engines and always used FG.
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Old 09-23-2015, 08:26 AM   #32
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Stirring things up a bit

On recreational low hour per year marine diesels, of what use are oil samples?
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Old 09-23-2015, 08:27 AM   #33
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That's interesting because around where I am (Connecticut) Fleetguard is easy to find and one of the lower cost filters. I had Cummins trucks and marine engines and always used FG.
Local Napa dealer sells the NAPA 1607 equivalent to the Fleet guard LF 3894 for $13.50. Cummins Fleetguard LF 3894 at Cummins power south is $18.40. In the end it's not so much the price but the convenience. Napa is right around the corner, Cummins Power south, one hour drive round trip. As long as the quality is roughly the same, sounds like NAPA filters are similar in quality to Fleetguard.
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Old 09-23-2015, 10:09 AM   #34
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On recreational low hour per year marine diesels, of what use are oil samples?

The test for water, coolant, soot as well as rust are a few things you might want to know about.
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Old 09-23-2015, 10:25 AM   #35
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Local Napa dealer sells the NAPA 1607 equivalent to the Fleet guard LF 3894 for $13.50. Cummins Fleetguard LF 3894 at Cummins power south is $18.40. In the end it's not so much the price but the convenience. Napa is right around the corner, Cummins Power south, one hour drive round trip. As long as the quality is roughly the same, sounds like NAPA filters are similar in quality to Fleetguard.
That's cool I use NAPA (or CARQUEST, both made by Wix) for lots of applications.
We have a local truck parts chain "Fleetpride" in my area that sells Fleetguard and they are about 3 minutes from where I work. Convenient plus they sell at lower prices than a Cummins dealer. I have also mail ordered them from a Dodge/Cummins website. That's another option.
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Old 09-23-2015, 11:28 AM   #36
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Stirring things up a bit

On recreational low hour per year marine diesels, of what use are oil samples?
Quote:
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The test for water, coolant, soot as well as rust are a few things you might want to know about.
As well as fuel in the engine oil. Fuel can show up if the engine is not being loaded enough.

Had this show up on my tractor engine running at about 1600-1700 RPM. Went up to 1800-2000 RPM and the problem went away. It also happened on my truck engine when I was having to take a certain route that left me stuck in traffic. Roughly 10-15 minutes in traffic in a one hour trip would put fuel in the engine oil. Most of the trip was constant 55 mph driving. In both cases, the amount of fuel was in spec but just barely.

It is constantly repeated that one can run an engine underloaded and then burn it out by running at higher RPMs for an hour or so. That does not work based on my experience, or if it did, it still left fuel in the oil which implies there was more fuel in the oil that was burned out.

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Old 09-23-2015, 11:49 AM   #37
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I put a Fram oil filter on my Perkins HT354 ... smoke all over the harbour. Short story version .....
The Perkins has dry and wet sumps with a scavenger pump and the Fram "equivalent" filter did not have the pressure relief valve that was in the Perkins filter. It took me weeks to find out what the problem was. Think I'll stick with OE filters
That's what I did also . I believe you might have been the one to tell me about it. It works . Thanks
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Old 09-23-2015, 12:49 PM   #38
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Stirring things up a bit

On recreational low hour per year marine diesels, of what use are oil samples?
Certain of the tests are still beneficial in a stand alone basis, while others have meaning only from the point of history in those circumstances. If you see changes or trends you may find those to be warning signs.
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Old 09-23-2015, 12:56 PM   #39
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The test for water, coolant, soot as well as rust are a few things you might want to know about.
I indeed understand what can show up on an oil analysis. My question though is reality based, who has done what based upon an oil analysis on their recreational marine engine?

Soot for example - assuming one changes engine oil as required by the book, what else is there one can do?

Coolant - you surely would note problematic coolant losses well before your oil analysis results are in every fall.

Heavy metals above spec - what to do here?

Fuel oil - surely one would note their oil level is rising or smells funny well before the oil analysis is due.

I am with a background of putting hundreds of diesels big and small through thousands of oil analysis. In each case we had a good history, warranty considerations, manufacturer guidelines and high hour use.

The recent engine maladies I recall on TF had to do with bad belts and a leaky rear main. No issues or questions raised by an oil analysis. Just curious who has really seen something from their oil analysis that causes them to take action.

I will say that if I had an older Cat 3208 I'd be tracking coolant in the oil given the wear out cycle of some head gaskets. But external visible leakage can occur with the 3208s before coolant signs in the oil.

Anyway, as I said, I'm just curious.
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Old 09-23-2015, 01:26 PM   #40
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I indeed understand what can show up on an oil analysis. My question though is reality based, who has done what based upon an oil analysis on their recreational marine engine?
...
Coolant - you surely would note problematic coolant losses well before your oil analysis results are in every fall.

Heavy metals above spec - what to do here?

Fuel oil - surely one would note their oil level is rising or smells funny well before the oil analysis is due.
...
Anyway, as I said, I'm just curious.
Fuel did not show up on the dip stick in my two engines. The amount of fuel in the oil was under 5% but it should be 0%. The tractor has a Yanmar engine which does not use oil but I did not notice a volume increase on the dipstick. The truck uses a quart or so of oil every 5,000-7,500 miles so a little fuel in the oil would be easily missed.

My truck engine has been loosing coolant but then it stopped loosing coolant. I will be changing oil soon and see what the UOA says but I suspect the missing coolant is from the coolant pump. I seem to remember this as being a known issue for this engine.

The truck engine had a bump up in metals in the UOA. Not bad but not good compared to the long term trend of the engine and other engines. This has been going down since that UOA. WHY did this happen? I let the oil get a bit low. What to do about it? Don't let the oil get low. At least that is my theory and the next UOA will be interesting. If the metals get worse I will talk to the lab and see what they have to say.

I run extended drain times on these two engines so UOA confirms my usage. With the exception of the fuel in oil issues, I have been tossing perfectly good oil. The truck oil is run 12,000-14,000 miles vs 5,000 by the book. Oil is still in great shape when I change it out. One year the tractor was changed after three years but very low hours. Did not mean that much time to pass but stuff happens some time. The oil was just fine and I got rid of perfectly good oil that was three years old. According to the Internet, that engine should be a smoking wreck. Still runs just fine with no oil usage or wear problems.

For me, UOA has highlighted a specific problem I could fix, ie, the fuel in oil issue. Just as importantly, UOA has shown that I do not have issues with the change and use periods I am doing with the engines. The wear problem might/should go away, which the UOA will show and UOA will show if I have a coolant leak in the engine vs the water pump. That is good to know since it tells me what needs to be fixed.

Later,
Dan
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