If you would have mentioned spending hours reading searches and being still confused about the
requirements for oil, I would have noted that and, hopefully, tempered my reply. A more direct question of "What do I look for on the side of the container?" might have alleviated all of the brand pitches.
As you can tell, if you do a search here, there is an
endless array of opinions and speculations on brands, weights, how often to change, and maybe even color.

Most, run into pages and pages of posts and lots of controversy. That is where the frustration mounts.