indeed, also there's so much dogma out there on gasoline that it's a worthwhile exercise spending a few pages and getting a little below the surface and burst some of the dogma bubbles.
Amazingly its a product each and every one of uses every single day yet know so little about. As long as it burns and our vehicles move we pay no attention to it.
When something goes wrong, its the first place people look for problems even if the problems come from elsewhere.