[ClampThurst]

Hey all, the Blackstone labs came in from my last oil change (5000 mile interval) and I'm a little surprised the Pennzoil Euro Platinum 5W-40(LL-01) came in at a lower viscosity than the BMW 0w-30 branded oil from the dealer, which came in within its respective spec on a previous oil analysis(viscosity range not shown). Of the two labs included below, the yellow is BMW 0W-30 and the red is Pennzoil 5W-40. Has any one seen lower viscosity with the Pennzoil product? As far as I'm concerned, this 5W-40 performed slightly worse than the bmw branded, thinner oil. Im inclined to switch to Fauchs in the future and try that.

[Wgosma]

No experience running Pennzoil, but FYI....my report after 7K miles - viscosity was well within spec - 6 cyl. motor running Castrol Euro Blend 0W40.

[andreigbs]

You may get more feedback from the crowd over at bob is the oil guy dot com, or BITOG for short.

There's a dedicated UOA subforum where a few tribologists frequently opine on lubes and what all the numbers mean.

Here's a link: https://bobistheoilguy.com/forums/fo...is-gasoline.3/

[evilchargerfan]

bob is the oil guy will def be your best resource

FWIW, my prev samples looks like this:



castrol edge, 0w40

e85/e30 fuel for the last 2 uoa's, standard (91 oct) fuel for the first one