Mobil 1 AFE 0w-30, 4k mi; '24 Ford Bronco 2.7L EB 11k mi

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Jun 24, 2024
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Location
Alaska
24wildtrakAFE11000blackstoneoverlay.webp

11,000 miles on this vehicle/unit and oil was changed with M1 AFE 0w-30 at 500, 3000, 7000, 11000. Only used Shell V-power premium (90 octane). Used auto start stop for entire interval. Fram Synthetic Endurance FE11955 cartridge filter.

Main difference is this was an autumn OCI with average temps around 20F, so more idling to keep vehicle interior comfortable in parking lots compared to previous interval. For fun/entertainment, I sent Amsoil/Horizon an analysis of this same drain and will post it in a reply to this thread when they get the result to me. Overlayed the 7/2/24 Blackstone sample for tracking even though that was a different lab and first changeover to Mobil from factory motorcraft 5w-30 syn blend fill.

Links to prior UOA discussions for this vehicle/oil combo:
9/10/24
7/2/24

My other 2.7 Bronco Running this oil:
10/25/24
7/18/24

My VOA discussions for this oil:
7/29/24

Member CarbonSteel's oil change log with M1 ESP 0W-30 that I'm following while weighing a switch to that oil.
@CarbonSteel 's UOA log
 
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See the low Additives results on the 9/10/24 UOA? In particular, Ca, Mg, P. I see similar results in a lot of Speediagnostix reports. For me, it really casts doubt on the validity of their lab results.
 
See the low Additives results on the 9/10/24 UOA? In particular, Ca, Mg, P. I see similar results in a lot of Speediagnostix reports. For me, it really casts doubt on the validity of their lab results.

I see them on all UOA reports. these analysis are much less accurate than people think.
 
I see them on all UOA reports. these analysis are much less accurate than people think.
Agreed on the last part. But I've never seen a lab regularly report additives such as Ca, Mg, and P at ~50% low. Maybe 10, perhaps 20-25%. But 50? If you happen to be aware of one from a different lab that you can link to, I'd like to see it.
 
Agreed on the last part. But I've never seen a lab regularly report additives such as Ca, Mg, and P at ~50% low. Maybe 10, perhaps 20-25%. But 50? If you happen to be aware of one from a different lab that you can link to, I'd like to see it.
But we don't know it's 50% low. it could be one is 25% low, the other 25% high, and the last one close to true. Add to that production variances and the levels become meaningless.
 
Sorry, it was the best I could do as I ordered horizon test kits in July and they only just arrived at my Amsoil dealer 2 weeks ago. So it was SD or blackstone. I am also just holding the sample jar under the drain plug hole after it flows freely for a few seconds so it’s not laboratory conditions when I collect it.
 
But we don't know it's 50% low. it could be one is 25% low, the other 25% high, and the last one close to true. Add to that production variances and the levels become meaningless.
There are several VOAs out there and Mobil 1's own data for P and Z to compare to. One can come to an intelligent conclusion of about what those values should be.
 
I would delete that start stop crap.
I installed an A.S.S. eliminator harness so that the vehicle remembers the A.S.S. on/off setting every time instead of defaulting back to on. I wanted to do this interval with ASS on and will do the next one with ASS off to see if anything changes noticeably. No it's not enough data to draw any conclusions, but like we all know I'm not running a laboratory so it's all for entertainment purposes only.
 
I thought that I'd figured out that Speed uses Predictive Maintenance. :unsure:
Do you know what address you shipped it to?
You plan to keep testing on your Bronco? Nice to have records for ownership.
 
I thought that I'd figured out that Speed uses Predictive Maintenance. :unsure:
Do you know what address you shipped it to?
You plan to keep testing on your Bronco? Nice to have records for ownership.
It goes to an address in Dover, Ohio. Yes I will keep testing for my own amusement, and in the small chance that it helps someone else even if just for a laugh at me wasting money.
 
It goes to an address in Dover, Ohio. Yes I will keep testing for my own amusement, and in the small chance that it helps someone else even if just for a laugh at me wasting money.
That would mean it does indeed go through Predictive lab. I have a few of their test kits through Schaeffers oil & they also go to Dover, OH. I do UOA on 5 hour runs on my lawnmower. Some would cry the blues but most do not. It's an interesting curiosity. Thanks for sharing your UOA.
 
See the low Additives results on the 9/10/24 UOA? In particular, Ca, Mg, P. I see similar results in a lot of Speediagnostix reports. For me, it really casts doubt on the validity of their lab results.

I see them on all UOA reports. these analysis are much less accurate than people think.

Agreed on the last part. But I've never seen a lab regularly report additives such as Ca, Mg, and P at ~50% low. Maybe 10, perhaps 20-25%. But 50? If you happen to be aware of one from a different lab that you can link to, I'd like to see it.

But we don't know it's 50% low. it could be one is 25% low, the other 25% high, and the last one close to true. Add to that production variances and the levels become meaningless.

I've now done 2 VOA of the M1 AFE 0W-30 with Speediagnostix, plus one through Blackstone overlayed in the attached image for conveneince. The variance of calcium is about 30% and stated to be normal in the comments, of course that comment was not made with the blackstone result in-mind, because they did not see it. I was wondering if the formulation might change (reduced calcium) to comply with ILSAC GF-7/API SQ proposed aged oil LSPI test, but the comments don't indicate that. Maybe it is already compliant. I have a 4th VOA coming from Horizon in a few days but understand now that the fidelity of the test is too coarse for conclusions, especially about additives.

M1AFEspeedDiagVOA12.20.24jpg.webp
 
Thanks for the comparison between Speediagnostix and OAI. I wonder what is driving the different between the fuel dilution? Supposedly they are both measuring it using GC.

Having looked at a few of the Speediagnostix UOAs, I have always thought there fuel dilution was a little low, but it was always just a hunch. Everything else seems to be with in normal sample variation.
 
Instead of doing two samples seconds apart, it might be better scientific practice to take a larger, single sample and then divvy it up between the two. Would this make a difference..... almost certainly not. But (for me) since I am playing mr scientist here taking samples and such, it would make me feel better knowing I reduced a variable. Totally inconsequential or not, it's something a weekend scientist can strive for. Ha.

Thank you for sharing this. I am interested to hear which report folks and you think is the more accurate one.

Is it rare on these motors to have zero fuel dilution?
 
Instead of doing two samples seconds apart, it might be better scientific practice to take a larger, single sample and then divvy it up between the two. Would this make a difference..... almost certainly not. But (for me) since I am playing mr scientist here taking samples and such, it would make me feel better knowing I reduced a variable. Totally inconsequential or not, it's something a weekend scientist can strive for. Ha.

Thank you for sharing this. I am interested to hear which report folks and you think is the more accurate one.

Is it rare on these motors to have zero fuel dilution?

I think the OAI one is more accurate. The dipstick smells strongly of fuel when I check the oil. It is consistent with @CarbonSteel ’s results with this engine too.
 
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