I've read many of the concerns of brands and wts of oils that have been discussed and have come to the conclusion that it is all mostly each person's own opinion.Including mine.I'm 63 and have owned 50+ vehicles and have used a variety of oils and have never had a engine failure due to oil and today's oil is so much superior over the oils of the past that I'm persuaded that most engines will last longer than we keep them.This is just my opinion and it won't keep me from reading and considering your comments.