Not sure if anyone else subscribes to The Motor Oil Geek on YouTube, but he just did this videos few days ago. Very good information for anyone to learn the basics about oil, and might answer a lot of questions some will ask here. It's long, but worth it. Then, check out some of his other videos that delve into specifics.
Also, pay attention to his answer to the first question, about seafoam, at end around the 1 hour 23 minute mark.
Also, pay attention to his answer to the first question, about seafoam, at end around the 1 hour 23 minute mark.
