Here is my UOA as promised and yes its posted in two places. The only things different in the 2 reports is I installed a new Fleetguard air filter and I did not use any 2 cycle oil. Oh the oil this time was in the engine for a full year or 5.5 months longer then in 2007. BTW I still used some Power Service in the winter and my normal use of Lucas as needed. Oh the winter temps lows were colder in 2008 when compared to the 2007 winter temps.


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Oil Brand Amsoil 5W-30 HDD
Oil Filter Fleetguard Stratapore
Sample Miles 6564 6972
Vehicle Miles 26596 20032
Sample Period 10/02/07 to 10/03/08
Make Up oil NONE

2008 UOA 2007 UOA
IRON 37 41
CHROMIUM 2 1
LEAD 6 6
COPPER 7 7
TIN 0 0
ALUMINUM 3 6
NICKEL 0 0
SILVER 2 2
SILICON 6 10
BORON 2 4
SODIUM 6 0
MAGNESIUM 14 29
CALCIUM 3620 4009
BARIUM 0 0
PHOSPHORUS 1236 1328
ZINC 1238 1533
MOLYBDENUM 1 3
TITANIUM 0 0
VANADIUM 0 0
POTASSIUM 0 0
FUEL (%VOL) <1 <1
VIS @ 40C, cSt NA NA
VIC @ 100C, cSt 11.37 11.19
WATER 0 0
SOOT/SOLIDS (% WT) 0.7 0.5
COOLANT NO NO
TBN 10.39 10.03
OXID 5.0 4.0
NITR 8.0 6.0
F-SOOT 0.70 0.58

 

Your engine must still be breaking in? Lots of minor levels of some wear metals...

Iron and lead are both higher than I see in 10k OCIs (typically between 10 and 20 ppm iron and 0 to 3 ppm lead, but I have over 100k on the clock too)...silicon was elevated at 10ppm (when did you change air filters?). The copper is normal for Amsoil, typically you see a big spike into the hundreds of ppm with Amsoil (which means nothing, just a trend).

Everything else looks comparable to my UOAs of Rotella, additives look good, TBN is good, soot/solids are low.

I might look the intake over for a leak somewhere...I typically don't see any more than 3 ppm of silicon running Fleetguard and Baldwin filters. I found a long time ago the 3rd gen housings don't seal well, and I grease the seal on the filter now.

 

I am going to be doing some tests with my two trucks for this same subject and getting started in the next month with the new oils, etc.
Could someone here PM me with either a brief explanation of what you DO or DON"T want to see, ie; what is good and what is bad in these reports, or send me a link to something that will explain it for me???
I am going to be buying in with Amzoil, and need to know more about the reports.
Also, a good place to send samples, etc. for testing,
Thanks
Chris

 

I use Blackstone labs (Blackstone Laboratories), but Amsoil also has their own lab.

Reading through things at Bob is the Oil Guy (www.bobistheoilguy.com) is well worth the time...I believe they have a thread about what the numbers on a UOA mean, as well as UOAs of different oils already posted.

Obviously anything metal related is bad...iron, lead, chrome, and aluminum are engine parts. Copper is typically related to the engine oil cooler in these trucks (or bearings if really bad). Calcium, zinc, phosphorus, and molybdenum are oil additives (anti wear, anti foam, etc). Potassium is typically associated with coolant contamination. You don't want too much silicon as it is a sign of dirt entering the intake, but sometimes is an anti foam additive or remnants of silicone sealer.

TBN is typically associated with the oil's life expectancy and is the oil's ability to neutralize acids...I believe anything over 2 is "serviceable". You want the soot/solids low, fuel, and coolant low.

Another thing is that you can only make general observations between two trucks' UOAs...you need multiple UOAs from the same truck to see a trend for that particular truck. And UOAs only show the oil's condition, and not so much the engine's condition...you can have really good UOAs (showing the oil is good) and have an engine that is wearing fast because the bigger particles aren't analyzed.

 

Thanks for the information!!!
The comparisons between the two trucks are basically to compare how the oil is effected with different upgrades, One will be a dedicated hauling rig pulling extremely heavy loads while the other in time will be a daily driver that is mostly for advertising purposes and I want to compare how the oil handles pulling the heavier loads compared to lighter duty work... They are both LB7 D-max's and will both have Banks Tuners, but other than that they are going to be tuned different and used for different purposes...
But the information you provided will be MORE than helpful!!!