Good video about understanding oil -- things we're never taught

[goodfellow]

Been into cars all my life and have taken some formal classes on oil formulation, but it was always taught by someone within the oil industry. There was always a bias of some sort.

This young man decided to explore the subject and it's very informative. A little "dry" at times, but it shows that just because the label says "Full Synthetic", it isn't necessarily a high grade oil.