oil longevity test.. interesting

[grazuncle2]

There are many YT videos with various opinions out there on the subject of oil changes and when necessary. Many of these videos are just that - opinions, with no science at all.

This one is different in that it has some scientific data associated and a practical demonstration of the used oil's properties, in it.. https://www.youtube.com/watch?v=T-yt5a1cWd4 - make up your own mind

interesting comment at 11:54 though

I'm not pushing one way or other BTW