Oil Analysis Results - Dodge Cummins Diesel Forum
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post #1 of 46 (permalink) Old 07-21-2007, 04:47 PM Thread Starter
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Oil Analysis Results

I'll have to type it all out, as my scanner isn't working. So here it is. 20,000 miles/1 year on the sample sent in. The oil is SuperTech 15W40 dino. About 12 qts. of make up oil added as I changed out the TP at 500 mile intervals 4 times when I first installed the MotorGuard bypass to "clean out" the engine. After that I changed at 1500 mile intervals as much of my driving is trailer towing in mostly suburban/in town driving. Overkill: probably, but what the heck!!!

Aluminum.........3
Chromium.........1
Iron................37
Copper.............6
Lead................2
Tin..................2
Molybdenum.....3
Nickel.............1
Manganese.......1
Silver..............1
Titanium..........0
Potassium.......13
Boron.............2
Silicon............6
Sodium............2
Calcium.......2552
Magnesium.....27
Phosphorus..1045
Zinc............1253
Barium...........1
Viscosity........71.9
Flashpoint.......405*
Fuel................1.0%
Coolant...........0%
Water.............0%
Insolubles.......0.3%
TBN................5.7

Blackstone Comments:

JOE: No problems showed up in the first sample from your Cummins. The high iron is from the long oil run and isn't a problem. Universal averages for the 5.9L are based on an oil run of approximately 6,700 miles so yours is wearing far better than most. You may need to change the oil annually, as high iron will eventually make the oil abrasive and may cause excess wear. Fuel at 1.0% isn't a problem and no other harmful contaminants were found. The TBN read 5.7 showing some active additive remaining. 1.0 is low. Suggest resampling in 10,000 miles to monitor.

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post #2 of 46 (permalink) Old 07-21-2007, 07:44 PM
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Just another example to show that even the "cheapest" oils perform well. I have heard a few rumors that supertech is made by a large well known company that produces one of the most popular diesel oils out there...
Nice UOA!

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post #3 of 46 (permalink) Old 07-22-2007, 03:42 PM
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Supertech has been refined by SOPUS (Quaker State) for quite a while now. However, since earlier this year, SOPUS is no longer the source of Supertech. From what I've learned so far, Mobil is producing the Supertech 15W40 oil. I'll see if I can get something solid on it but I DO know they've changed their source.

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post #4 of 46 (permalink) Old 07-23-2007, 12:23 PM
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Let me see if I understood you correctly, you used 12 qt’s of replacement oil during the 20K you put on the oil in your engine and your TBN was only 5.7? Also did you tell the lab you used 3 gallons of replacement oil? With the oil TBN of only 5.7 after having 3 gallons of new oil installed over 20,000 miles, I know that I would not want that oil used in my engine except as a last resort and I was very desperate for an oil change.

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post #5 of 46 (permalink) Old 07-23-2007, 05:49 PM Thread Starter
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And prior to the MotorGuard bypass for the same mileage, I would've used 12 gallons of oil per my 5,000 mile oil change interval!! Yes I did note that on the info slip I sent in with the sample. What's the TBN for virgin SuperTech?? Do you know??? I don't. What if it started at 5.8?? What is the virgin TBN for other oil brands??? Do you know??? Blackstone doesn't seem to think there is a problem here. If you want to spend your hard earned money on the most expensive oil out there, go right ahead. I've used SuperTech motor oil in 2 different Cummins engines now and have never;I repete, NEVERhave had any problems associated with the brand. By the way, did you read the Blackstone comments????
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post #6 of 46 (permalink) Old 07-25-2007, 01:25 PM
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Supertech has been bottled from several manufacturer, even Rotella.

Basically whoever will bottle their oil for cheapest...not like their going to change the formula just for WallyWorld, and there's nothing wrong with that...

I have not seen anyone going 20k before, but the UOAs on Supertech have always been fairly good.

I'm still tempted to try Mystic oil myself...I can get it locally.

steved
post #7 of 46 (permalink) Old 07-25-2007, 01:40 PM
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Yep, bypass filtration is key to long oil life, no matter what oil you choose. I have many customers who run the AMSOIL bypass system and feed it Rotella (usually because they work a a shop where Rotella flows like water and is free). Eliminating that soot loading factor from your oil-aging equation is a big benefit, and your oil analysis proves it.

-Chuck
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post #8 of 46 (permalink) Old 07-25-2007, 04:37 PM Thread Starter
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Does anyone know the TBN for "virgin" SuperTech?? I do realize that it is sold to be an economical alternative to the name brands, but it still meets all the API stuff, Cummins and all the other alphabet soup things out there. I also understand that the "additive" package is "weak" as compared to other oils; but doesn't that mean that there is more "OIL" in the oil???? As far as TBN is concerned, isn't it more important where it started versus the "actual as compared to other oils"???? One of the reasons I went with the MotorGuard TP bypass was to be able to use "cheap" oil. I've read several reports (not here) that gave VERY GOOD ratings for SuperTech oil. As I posted, I change out my TP every 1500 miles or so depending how I drove the truck during those miles. My research showed that most guys with the MotorGuard or the Frantz were changing the TP at about 2,000 miles or so; but many of these were gassers. I figured with the added soot load from diesel, and that my truck is mildly BOMBED, and the fact that much of my driving is trailer towing around suburbia; I dropped the TP change out to 1500 miles. And to DBLR; I ask you this,.... Isn't the idea of running a bypass to keep the oil cleaner??? So what is the benefit of buying the most expensive oil on the shelf??? If I can maintain a constant TBN in my oil, why should I change what I'm doing now??? Again, Blackstone Labs doesn't think there is a problem here. If I wanted to truly run "extended" oil change intervals with limited filter changes, I'd go with a synthetic and probably one of the spin on bypass units like Amsoil. The main reason I went with the MotorGuard, was because for me it makes more sense to spend 10 minutes with my truck every 3 or 4 weeks and change the TP and add the appropriate make up oil. I also check a lot of other things under the hood while I'm doing this. I wanted to get away from having to "change" the oil and have used bulk oil that I needed to get rid of. With my set up now, I've eliminated the bulk oil that used to accumulate in my garage and I've cut my oil usage by 3/4. Granted, I still have to buy filters for the bypass; but at about .80 cents a piece, I ain't gonna go broke doing that!!! Cheers Dudes!!:thumbsup :thumbsup
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post #9 of 46 (permalink) Old 07-25-2007, 04:47 PM
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A better quality oil will start with a higher TBN (total base number) and withstand the acidifying affects of oil wear in a diesel. You have good filtration. A better oil would benefit you even more since it holds up better and has better base stocks. The quality of the initial oil and the quality of your filtration are the two major factors that go into oil deterioration. While you are seeing the big benefit of good filtration, you would see even more longevity and protection with a better oil.

-Chuck
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post #10 of 46 (permalink) Old 07-25-2007, 04:54 PM
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I just did a search on BITOG and a member who performed a UOA dated April 04 came back with 10.0. Seems a little low- and while that shouldn't bother you, they also mentioned in the thread that the "additive pack looked a little skimpy" Might be an idea to run something a little more robust, Dorkweed. You have a pretty expensive rig.

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post #11 of 46 (permalink) Old 07-25-2007, 05:07 PM Thread Starter
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Food for thought!!! Now you've got me thinking again (oh no)!!! Thanks guys!!!:thumbsup But doesn't the new oil recommended for ULSD have a lower starting TBN than the previously rated same oil??? If so, how much are we talking here???
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post #12 of 46 (permalink) Old 07-25-2007, 05:20 PM
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usually, the new CJ4 oils are about 8- 10 for TBN. It is supposed to last longer, but I haven't seen any evidence of this yet. The new Rotella is showing great results. The new Valvoline I think is not doing well at all. Looks kinda like your supertech. TDR has an article on it.

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