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Discussion Starter · #1 ·
This will be a place to post UOA results for the 3rd gen engine. When posting UOAs, be sure that all the critical information is available such as miles on sample, the oil, oil filter, driving conditions, dates, etc.
 

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Discussion Starter · #2 ·
OhioTech sent me the following UOA report.

Oil: RedLine
Lube Time: 9,790 miles
Miles on Truck: 10,352 miles
 

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Here is the UOA of my first oil change using Amsoil European 5w40 and Mopar filter. Mileage incurred was 8000 in dirty and dusty conditions, minimal towing, 20% off road, rest highway miles.
 

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Motul 8100 X-Cess Gen2 5w-40
Sample 1: VOA (Virgin Oil Analysis, aka fresh unused oil)
Sample 2: used oil, 10k miles, about 5-6k of which was towing a 3,000# boat all winter long, with 2 quarts added over that span (engine break in hopefully)

Break it down for us, Willy :)

NEW OWNERS, CHECK YOU OIL OFTEN. she chewed 1qt (if i recall correctly) right off the lot from 0 miles to 1,200 miles. And then 2 quarts of Motul from 1,200 to ~7,000 miles.

89247
 

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Overall, looks decent.
We see at 10K, some mild thinning - oxidation has just started to set in - so that’s likely the thin point for the oil (that’s not a concern - it’s the reference spec for the factory oil). The Base No is holding steady at 5.35. It starts at 8.75, and would be fine until at least 3, possibly 1, depending on the oil and when wear sets in.
Blackstone would tell you keep running it.... but many fleet guys noted that Rotella has massive wear starting when the base number gets around 3.2-3.4 - Delo I remember seeing quoted around 2.8-2.9. Some of the better stuff like Schaefer’s was not showing wear even below 1.... so an arbitrary number isn’t a good reference. You have to watch trends in large datasets.

Mostly, an excess of salts shows coolant long before failures are obvious - which is my primary concern. As large quantities of metal will show something failing earlier than the problem appears.

Makes me want to do a VOA, just not sure it’s worth the expense.

The Potassium is a lifter coating wearing off. It will drop some next time.
Iron should drop some next change, and be relatively linear based on miles on the oil from then on.
I wouldn’t expect the aluminum to start dropping next change based on experience. I’m curious to see my 30K results as soon as I send them out.


Motul 8100 X-Cess Gen2 5w-40
Sample 1: VOA (Virgin Oil Analysis, aka fresh unused oil)
Sample 2: used oil, 10k miles, about 5-6k of which was towing a 3,000# boat all winter long, with 2 quarts added over that span (engine break in hopefully)

Break it down for us, Willy :)

NEW OWNERS, CHECK YOU OIL OFTEN. she chewed 1qt (if i recall correctly) right off the lot from 0 miles to 1,200 miles. And then 2 quarts of Motul from 1,200 to ~7,000 miles.

View attachment 89247
 

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Incidentally, if you look at JGs post above, it’s holding up relatively similar to the AMSOIL, perhaps slightly better, and mine, you’ll see common trends, like the potassium level from the lifter coatings, the fact Iron drops even with more miles due to break-in, and the AMSOIL seems to do better on aluminum - this could just as easily be a sign of lower Group V content, and the aluminum particles are not clinging to the oil - will take several more intervals to find out....
 

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Incidentally, if you look at JGs post above, it’s holding up relatively similar to the AMSOIL, perhaps slightly better, and mine, you’ll see common trends, like the potassium level from the lifter coatings, the fact Iron drops even with more miles due to break-in, and the AMSOIL seems to do better on aluminum - this could just as easily be a sign of lower Group V content, and the aluminum particles are not clinging to the oil - will take several more intervals to find out....
We appreciate the thorough analysis, sir! I'll have an Amsoil EFM VOA to throw up here later this week prob.
 

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Discussion Starter · #9 ·
Here's Amsoil EFM 5w40 FS Synthetic European Motor Oil VOA (Virgin Oil Analysis; aka unused oil fresh from the jug to use as a baseline reference):
I can't wait to see the UOA results!
 

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I posted this is the wrong thread.

This is virgin analysis on the Quaker State Euro 5w40 sold at Walmart for $3.70 per quart.
 

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Thanks for posting up the results. If that oil holds up it will be the true bargain/value of the year IMO. Hope it does.
 

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Discussion Starter · #12 · (Edited)
Here's my factory fill UOA. These are mostly highway miles and easy driving.
 

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Discussion Starter · #14 ·
Here's the second UOA, but first sample using Pennzoil Platinum Euro. The mileage on the second UOA was 95% towing.
 

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Here's the second UOA, but first sample using Pennzoil Platinum Euro. The mileage on the second UOA was 95% towing.
To me these numbers look pretty good compared to the Amsoil and Motul samples I've seen.
 

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Discussion Starter · #16 ·
To me these numbers look pretty good compared to the Amsoil and Motul samples I've seen.
Keep in mind, these are low mileage samples:
Sample #1 (4,133 miles with factory fill, unknown oil)
Sample #2 (3,551 miles with Pennzoil Platinum Euro)
 

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Here’s my first UOA @ 3700 miles on the truck and 3700 miles on oil. Two travel trailer tows in elevation up over 7k ft with 100 degree temps during climbs. Oil temps peaked 260-270 at top of the grades. Factory filled Pennzoil Plat. Euro 5w 40.
 

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Here’s my first UOA @ 3700 miles on the truck and 3700 miles on oil. Two travel trailer tows in elevation up over 7k ft with 100 degree temps during climbs. Oil temps peaked 260-270 at top of the grades. Factory filled Pennzoil Plat. Euro 5w 40.
The fear mongerers on the 3rd Generation EcoDiesel owners group on Facebook would tell you that the low viscosity in this sample shows that you have excessive fuel dillution. They would go on to say that Blackstone isn't an ISO certified lab, and they don't actually test for fuel in the oil.

I go round and round with those guys all the time. They may have some valid points, but they also push Amsoil really hard and it ticks me off.
 

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😂 well I haven’t had the joy to dabble over there on the 3rd gen diesel Facebook page. I’m just going to stay clear and let you have all the fun over there!

This first sample I’m going to take with a grain of salt. Between brake in and running it hard towing 7500 lbs up grades in the desert, I’m going to chalk it up to, it’ll be better next time. I don’t tow that much in the winter months. So next sample will probably be lite duty on it. I changed the oil myself for this sample and the dealer owes me 3 free changes. So I’ll be getting a fresh change after my next tow coming up. So she should be flushed out pretty good after another Short change. I’ll do another sample probably 5-6k after this next change. If I don’t tow I’ll probably go longer.
 
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