Oil Analysis

sm1ke

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Canada
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'18 CX-9 Signature
I realize that there is already a "Skyactiv Oil Analysis" thread, but it's posted in the CX-5 sub (which is odd to me, because all of Mazda's current models have Skyactiv engines). Mods, if you think that this post should be merged into that thread, be my guest.

I recently got the results of my first UOA last week. Below are the results. I also posted these results on BITOG, and some of the members are recommending a switch to an SN+ oil. I actually switched to Castrol Edge 5w30 (which has the SN+ certification) when I took the sample. I plan to have another UOA done around the same time next year, after 2 or 3 more oil changes with Castrol Edge.

Car: 2018 Mazda CX-9 Signature, 29127 km (18099 mi) at time of sample.
Oil and filter: Pennzoil Ultra Platinum 5w30 with Mazda PY8W-14-302 filter, 7400 km (4598 mi) OCI.

Pennzoil Ultra Platinum carries the following certifications:
API SN-RC and all previous categories
ILSAC GF-5
ACEA A1/B1-10, A5/B5-10, A1/B1-12, A5/B5-12
Dexos 1 (unsure if it is gen 2 certified)

Oil was in service from May to Oct (six months). Temps ranged from 30c to 10c. New OEM oil filter and AEM dry flow engine air filter were used. I drive it fairly aggressively on a daily basis, but rarely go WOT (maybe once or twice a month, just to stretch its legs). Mileage on the vehicle was 29127 km (18099 mi) at the time the sample was taken. I regularly change the oil every 7000-7500 kms, and I use a new OEM Mazda oil filter (PY8W-14-302) every time. It's fueled with Shell 91 only. During the last fuel fill before the oil change, I added a bottle of STP fuel injector cleaner and ran the tank to almost empty, then changed the oil (and took this sample).

The car has a CorkSport air intake modification and a throttle response controller. Nothing out of the ordinary to report as far as ownership. The CX-9 has over 30000 km right now and appears to be running perfectly fine so far.

Previous oil change (not reported) was Pennzoil Ultra Platinum 5w30 with 6750 km (4194 mi), new OEM Mazda oil filter with AEM dry flow engine air filter in use.

UOA was performed by Bureau Veritas in Edmonton, AB.

Code:
OIL             PUP 5w30
MILES IN USE    4.6k
MILES           18.1k
SAMPLE TAKEN    10/16/19

ALUMINUM        2
CHROMIUM        <1
IRON            15
COPPER          3
LEAD            1
TIN             1
MOLYBDENUM      51
NICKEL          <1
MANGANESE       N/A
SILVER          <0.1
TITANIUM        2
POTASSIUM       2
BORON           64
SILICON         21
SODIUM          1
CALCIUM         2415
MAGNESIUM       13
PHOSPHORUS      663
ZINC            728
BARIUM          <1
VANADIUM        <1
ANTIMONY        1
     
INSOLUBLES       N/A
WATER           <0.10
FLASHPOINT *F   N/A
SUS VIS 210*F   N/A
cSt @ 212*F     8.4
VISCOSITY INDEX  179
PDF copy of report attached. According to the report, everything is normal. The rep I talked to mentioned that they do an oil/fuel dilution test, but I don't see the results of that on the report, so I sent him an email a couple of days ago to find out why the results were not included. I'll post when I have an update.
 

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YCT

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2018 Mazda CX-9 Signature
This is great news, I was getting so worried after reading the other thread. Thank you for sharing.
 

sm1ke

Work In Progress..
Moderator
Contributor
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Canada
:
'18 CX-9 Signature
This is great news, I was getting so worried after reading the other thread. Thank you for sharing.
No problem. I really wish more people would do this so we could have more feedback, but getting a UOA done isn't really cheap. This UOA cost me about $40 CAD ($20 to ship the sample and $20 to do the UOA). But I don't mind paying that to understand a little bit more about the engine and the potential issues that could occur, especially since this is my first Mazda and my first turbocharged engine.
 
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