Triple Lab Showdown - HPL Premium Plus PCMO 0W-30

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These are unused/virgin analyses of High Performance Lubricants Premium Plus Passenger Car Motor Oil 0W-30 purchased January 2025. Just for fun, I sent 3 labs (Blackstone, Oil Analyzers, SpeeDiagnostix) samples from the middle part of the same bottle of this unused oil.

Oil Analyzers/Horizon was somehow confused about what I sent them despite me indicating in my submission that it was an unused/baseline sample of HPL PP PCMO 0W-30; somehow they thought it was still the M1 AFE 0W-30 I sent before. Either way, their flagging of the result shouldn't effect the values I guess, although I clarified what the sample was via email and asked them to clean up the report for me, still waiting on that. Blackstone was also confused by what they detected as high Aluminum so they ran it twice with new comments. Speediagnostix detected this metal as Tin and correctly stated in their comments that it was from the Molybdenum additives.

Not sure what to make of all this, other than to reinforce what I've learned on BITOG: the input parts (additives, viscosity, oxidation, etc) of these analyses seem to be all over the place but the wear metals are *usually* pretty consistent, although there is an interesting Tn/Al confusion here.

HPLpppcmo0W30blackstoneVOA.webp

HPLpppcmo0W30oilanalyzers.webp

HPLpppcmo0W30speediagnosixtVOA.webp

HPLtable.webp

HPL Viscosisty.webp

HPLmainAdditives.webp

HPLadditives2.webp
 
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Without knowing the reproducibility and repeatability of the various ASTM tests it’s hard to make conclusions. Reproducability may not be that great especially for a test involving viscosity.

As for the spectrographic results, those should be highly reproducible. But, they are also highly dependent upon what amounts to an involved calibration routine. You might be seeing some sloppy practices at the lab.
 
What does HPL say for the moly level on this oil? Seems that's where one lab is much higher.

I'm not sure they publish that but most of the other HPL analyses I've seen indicate something in the 800-1000 ppm range for Moly, granted that's for other grades and types of HPL. I'm sure @High Performance Lubricants could chime in if they want to but I would bear no grudge if they want to keep their sauce secret.
 
Would be interesting to do the same test with used oil, especially with some fuel dilution present. Also see what TBN results you get from all 3 with the same batch of used oil.
 
Am I wrong in thinking that you should not be including the brand of oil being sent, as it is irrelevant? Maybe starting viscosity, and hours\miles used....and that is it. Giving the least info possible to the tester seems to me would yield the most accurate results.?
 
Also a reminder that using one of those labs in particular is probably not a good decision

This just reinforces why I'd rather spend the money on an oil change than on an 'oil analysis'.

Well you can still do UOA's to see the engine condition or if something going south WITH THE ENGINE. This has always been the case for UOAs.
 
So two labs detect Al, close enough levels and one lab = zero. That speaks everything we should know about oil comparos using 30 buck chuck sample send ins.

Guys - you cannot use virgin oil analysis to justify arguing one oil better than another!
Yeah that Al reading is bizarre. I prefer OAI over the other two labs mentioned. B/S Labs is my least favorite.
 
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