Everytime the subject of engine oil arises we get into the same thing and from what I see your idea is thicker is better. In some cases that may apply but not in the case of Fords Taurus. Tug boats we used the Shell Rotella thick but don't remember the numbers now. Anyway, let each chose the one to his liking and rock on, but as for me I'll do what my old First Sgt always said, "READ THE FREAKIN' MANUAL."
Business booming so have to get back to work.