Applications for Education.
Over the years Ive had lots of students who were aspiring mechanics. One that I had last year was constantly groaning about how his car might just work on high octane gasoline and that it was so expensive. A video like this one could assist those trainees comprehend how gasoline is actually produced and how the octane ranking is determined.

On a related note, here are some great tools for annotating videos.

Whenever I fill up my cars gas tank Im grateful that I dont have a car that requires high octane gas. What is high octane gas anyhow?
this reasonably new Reactions video..