Guys, I remember reading about the lawsuit; wasn't there a quality control problem that resulted in some sand or silica particles getting in the
oil? General Aviation guys are used to 1950's (or older) technology, and a lot of "old husband's tales" (as I prefer to call them) abound, some VERY good, some...well, interesting. However, the contaminated
oil did a number on both the engines and the "never again" attitude of a lot of GA A&P mechanics toward
synthetic oils.
Webebob, I seem to remember reading something about the improved machining and ring material, and "no-breakin" motors too.
Good thread here.