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Engine Oil of Old Days

Clever of them to analyze some of those ancient products and see how they stack up. Thanks for sharing the link! On a related note, I've used Blackstone 3 times for analyses on my Legend (264k, 358k, 479k). Who knew there was so much data to be gathered from just a sample of used motor oil.

Thanks for the link, that's cool.
Yeah, an oil sample can tell you everything. Especially when deciding to switch brands or extend change intervals.