@SubieRubyRoo - The recent UOA on the S600 was, indeed, gratifying. Not nearly as impressive as
@wwillson running 30,000 miles, or your run above, but impressive nonetheless.
The point of the video was to discuss how various oils lose viscosity through shear, and how quickly various VIs shear in comparison. LSJ structured the test, and it was interesting. I don’t always agree with what he says, but this time I thought he was spot on. The best way to show the role of VI in viscosity loss was to test an oil without VI. So, he chose one.
And HPL generously volunteered their lab for the test - with many thanks to Dave, who was able to clear off his schedule from their own testing to accomplish that.
For some to suggest that HPL rigged the test to show the superiority of their oil is both missing the point of the video, and trash talking where it isn’t merited.
Back to the oil - yeah, I am genuinely impressed with how the HPL held up in my S600. I drained it because the first sample was lost and I hit the MB 10,000 mark. But at 10,000 miles, that 5W40 supercar looked ready for another 10,000 miles, easy, with strong TBN, and good viscosity and very low wear.
Not to go too far off topic from the thread - viscosity loss testing of VI - but there is one other really important point from your run in the EB, my run, and Wayne’s - that HPL is actually cheaper to use than ordinary products.
I’ve seen it said, several times, that you’re better off using a cheap oil and changing it often. You “get the same results as a boutique oil at lower cost.”
Well, clearly, that isn’t true. The HPL can stay in service for a long time. The cost/mile for HPL is lower than a regular oil used at 3,000 or even, 5,000 mile, intervals. That is an important point.
That is exactly why some large entities, that run big fleets, have chosen HPL after extensive testing. Their operating cost per mile, or per hour, in the case of machinery, goes down by using the better oil.
Those entities aren’t looking for the “cool” factor - they are saving money, plain and simple.