Pretty sure no one said the metals in solution didn’t come from the engine. Please re-read even if just my short posts and the involved banter. Maybe some lights will come on.
As for statistically valid studies the simple answer is we are waiting
LSJr tests and discusses DexosD babymax oils
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As for statistically valid studies the simple answer is we are waiting
Nobody said they don’t show wear. Again that’s not the point. The discussion here is that the UOA is determining comparative wear between oils. This is a far different discussion.
Testing wear differences between oils takes a much more complicated and expensive test since all the numerous variables that exist in an uncontrolled test such as a UOA must be controlled, eliminated or defined to observe the relatively tiny difference in wear an oil brings to the equation.
When a variable is in the noise it’s not easy nor cheap to tease it out. That’s why the ASTM tests I referred to earlier exist and why they aren’t an uncontrolled $35 spectrographic analysis. It’s also why Blackstone has stated that no oil they have ever tested shows a statistically significant difference in wear. It’s not that it doesn’t contribute to the result, it’s that the significance is below the actual significant factors in the result. Therefore, no conclusions can be made in that regard.
Seeing something in a result is the easier part. Ascribing the observation to one (or more) isolated variables in the observation is the much more difficult part. When the variable is in the noise then it can actually be impossible. You need a different test.
Blackstone has many more. They have stated there is no significance related to the oil.
So like I said, the differences still aren't statistically significant. Double almost nothing is still almost nothing. Still think that in this particular case we have enough data to conclude thicker oils have less wear.
Whether that wear will make any difference in the lifespan of the engine, whether that wear will be what ultimately takes the engine out of service and whether changing to a thicker oil will prolong engine life, is an entirely different question.
Blackstone wrote that "1,000,000 Mile" cars ALL share one common trait. Not brand. Not Oil and filter choice. Not OCI interval. It all comes down to number of starts per miles driven. A car started once and driven 500 miles and shut off will show WAY less wear than the exact same car started 10 times, and driven 50 miles with each start. It's the wear induced while the engine is coming up to full temp, thats the engine killer. Once at full temp, wear is practily nil.
That's not the Blackstone newsletter I was referring to, but the point being there is no correlation of wear to the specific oil. This is what is attempting to happen in the video and elsewhere.
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Blackstone can write what they want to write, can they prove it?
Let me do my math, lets say 60 miles an hour for 1 hour, no breaking the speed limit. 60 times 8 is 480, that is 8 hours straight, I could only do 4 hours from my area to Northvale, New Jersey! I could do more, but I got to my destination. That was 240 miles, another 240 miles I would have ended up somewhere in New York State near the Canadian Border?
Ok
Thank you for pointing this out!
I think (emphasis on think) most here in this discussion would agree a thicker oil will result in less wear. It’s been mentioned here before that the more extensive wear analysis tests, with engine breakdowns and such, always show less wear with thicker oils.
I think (emphasis again on think) the point being made is using UOAs to compare oils within the same grade isn’t the correct application of an UOA
lol sure, if you say so
It doesn't take blackstone to know this. Super high mileage RV transport drivers on youtube. Diesel pickups, highway miles, half unloaded, long intervals. They also tend to do their maintenance.
But they aren't typically using babymax trucks.
Off the top of my head there was another discussion about UOAs involving Valvoline R&P. I went back and forth with this member who mockingly said (paraphrasing here) I should tell oil companies “they are wasting their money on tests like SAE sequence IIIH tests when all they need is a $35 UOA”. Two completely different tests with different objectives. One is a torture test or stress test of the oil, the other is essentially a health checkup of an engine so the argument made no sense. Mods ended up deleting part of our back and forth and if I remember correctly, locked us both out of the thread.
None of that answers the question.
The gist of the entire test is to figure out if there is truly an optimal oil for the LZ0 as it has some problems and seems to be exceptionally hard on oil and itself. IF...and that is a big IF...there is a best of the best oil, this engine would seem to be one that you would want to use it in.
When LSJ says "I seem more wear metals on samples that use X oil than I do on samples using Y oil", that seems relevant to the goal. While imperfect...it is still relevant.
In real life, its important to never left perfect be the enemy of good enough.
When LSJ says "I seem more wear metals on samples that use X oil than I do on samples using Y oil", that seems relevant to the goal. While imperfect...it is still relevant.
In real life, its important to never left perfect be the enemy of good enough.
There is no optimal oil. That’s a faulty premise to start with. But it makes for a good YouTube video.
And again, the real problem is not that he sees “more wear metals”. It’s that it’s being ascribed to the oil with no valid evidence that that is the case. The fact that he doesn’t know this is a second problem.
A good example of the power of an Internet influencer.
Then it’s a fools errand. Lubricant isn’t going to make up for a faulted engine design.
If there really was a “best of the best” oil, Walmart would only need to stock Mobil FS 0w-40 (gas) and Delo 600 ADF 15w-40. Would clear up lots of shelf space.
Isn’t GM going to different oil for their 6.2s?
It isn’t going to fix it, but it might slow it down or delay the inevitable.
You know. Like BMW.
Oh I know it won’t fix it
You didn’t ask the question, someone else did. Your opinion is irrelevant.
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