I think the OP is being honest but he has been given incorrect information about how long this OCI was. In almost every important metric, the numbers look too good. Those metrics are wear metals, TBN, insolubles, and viscosity. The one I’m not sure about is silicon since that is muddied by silicone added by the engine from sealants, which is quite variable.
26k mi OCI, Mobil 1 5w-30 EP, 2018 4Runner
- Thread starter dsr70
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@dsr70
Awesome report
The Toyota 1GRFE is very easy on oil
as I have proven the past 15 yrs with mine
https://bobistheoilguy.com/forums/t...oy-fj-cruiser-w-232k-4-0l-gasoline-v6.387933/
Awesome report
The Toyota 1GRFE is very easy on oil
as I have proven the past 15 yrs with mine
https://bobistheoilguy.com/forums/t...oy-fj-cruiser-w-232k-4-0l-gasoline-v6.387933/
Highway driving.
Not on the run after 26k. The engine is running the "after" right now. I changed at 115k down in AZ, changed at 141k at Christmas at my home.
I'm a Bitoger since 2005. Green GC days. I'm surprised at the doubt of my word. But I guess that's the territory of today's more suspicious 'net, understood and no hard feelings. The relative is my cousin, in his 60's now. He does nothing to his vehicle and I was upset about the OCI. Hence this UOA. I don't bother with UOAs anymore on my personal 6-8k OCIs and get nervous if I slip to a 9-10k, but ran through the drill properly of running 5 mins, catching mid-drain, etc. I'm doubly convinced we're all wasting money on UOAs. I certainly have over the years. Anything I saved getting oil deals is long gone in $40 tests. I've never had even a remotely suspect UOA. The industry is that good. That's my takeaway. Name brand, current API stuff, no funny biz stock, I mean.
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Not doubting you personally
The iron is just a thing I question. Even if the oil just sat in the pan engine never run that number would be low . Amazing
I do remember back in the day people here were complaining about Blackstone numbers getting wonky. I see now, not having posted in a few years, a lot of different testing companies. Is Blackstone still considered accurate and reliable? Considering this was a one-off run, I would have sprung for a competitor's test to compare.
One possibility is that Blackstone mixed up your sample with someone else’s. Their reputation is not very good yet many members still use them. How dark did the oil look?
Please understand it's nothing personal. Like others have said, the iron number is just...shocking. Universal averages are 10ppm per 6k miles. Your results are 9ppm per 26k miles. Your results are almost 5 times better than universal averages.
There have been many questionable UOAs from Blackstone on here. Typically, their viscosity results are lower than expected, and their fuel dilution estimates are typically very low. I personally switched to Oil Analyzers. I find their results appear more accurate and consistent, and they offer more value for the money. They offer TBN and oxidation/nitration standard in their results, two important metrics that Blackstone charges extra for. Plus, Blackstone's turnaround time is typically 3x-4x slower than Oil Analyzers.
dsr70
I commend you for stretching the limits of this Mobil 1 EP Oil. That being said, the Oil is Spent, it's sheared out of Grade, and there's nothing left of the TBN at 1.6
Going fwd I suggest you cut back to a 20k OCI to be a little more Conservative, and save your motor in the long run.
I look fwd to further testing results
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Did you read his whole post? This isn't his vehicle and the interval isn't in his control.
Patman
Staff member
I would love to see more super high mileage reports like this, it’s good data to have. It’s too bad that this one appears like it might have been a mixed up sample from Blackstone 
Agreed. Really the only interesting content in this sub...most of it is sub-5K who cares type stuff.I would love to see more super high mileage reports like this, it’s good data to have. It’s too bad that this one appears like it might have been a mixed up sample from Blackstone
Patman
Staff member
Sadly after all of these years of seeing UOAs on here I don’t really even look at the sub 5k stuff anymore either. I want to see people pushing the limits and beyond! Cases like this where people are changing oil for family members or friends (and going way longer than normal) are perfect test subjects for this. And it’s a good indicator of what a lot of people are doing as there are many people who don’t really stick to a normal OCI and only get it done when a friend or family member bugs them to finally get it done!
dnewton3
Staff member
dsr70 -
I think most of us here do not, in any manner, doubt your credibility. Our skepticism exists in the incredibly low Fe, the add-pack not being a match to VOAs, and such. Our collective suspicion was that an OCI occurred outside of your control, unbeknownst to you. But, given your recent statement, we'll set that aside and take you at your word. No offense meant by anyone here.
The other possibility is that BS confused your sample with another. Typically BS will hold onto samples for a while in case you want them to "retest" the sample. I recommend you call them and ask them to do that. They are honest people; if they made a mistake they'll 'fess up to it. And, if they run the sample and it comes back similar, well that pretty much seals the deal. If they rerun it and it's different, that also helps understand the numbers. Either way, rerunning the sample is perhaps the better way to address this issue.
I think most of us here do not, in any manner, doubt your credibility. Our skepticism exists in the incredibly low Fe, the add-pack not being a match to VOAs, and such. Our collective suspicion was that an OCI occurred outside of your control, unbeknownst to you. But, given your recent statement, we'll set that aside and take you at your word. No offense meant by anyone here.
The other possibility is that BS confused your sample with another. Typically BS will hold onto samples for a while in case you want them to "retest" the sample. I recommend you call them and ask them to do that. They are honest people; if they made a mistake they'll 'fess up to it. And, if they run the sample and it comes back similar, well that pretty much seals the deal. If they rerun it and it's different, that also helps understand the numbers. Either way, rerunning the sample is perhaps the better way to address this issue.
Patman
Staff member
^ I agree, Blackstone should definitely look into this because it clearly doesn’t make sense that this UOA was for an oil in service for 26k
I don't see how it differs from the VOA. It's got the same amount of moly, some boron, and is very low in calcium and high in magnesium compared to a typical oil. The calcium is a bit higher than the VOA, but that can be explained by carryover from the previous fill, since almost any other oil would have much higher calcium than this one. It seems like a perfect match to me.
We also know that it was from a long drain due to the low TBN.
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Why does this community continue to rally around Blackstone if we can't trust them to keep samples straight?I would love to see more super high mileage reports like this, it’s good data to have. It’s too bad that this one appears like it might have been a mixed up sample from Blackstone
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