[duegi]

et al,

From 50+ years of riding experience and listening to mechanics… There isn’t engine failure do to oil, there is, engine failure due to a lack of lubrication. Usually attributable to lubrication distribution issues, design errors in the lubrication system, and user neglect. Well of course excessive mileage resulting in break down of said oil can be a problem.

A chemist friend who worked for Phillips 66 years ago said dino oil is pretty much dino oil, beware the cheap stuff as it’s not as refined as middle of the road and higher end. He liked synthetics and thought they would keep getting better and better with longer life spans. Beyond that he said they were better than dino oil as they were slicker but even in the synthetics, synthetic oil is synthetic oil (both gas & diesel specific). He further said the additives in both oil types make things a bit more slick and clingy, but all the letter and acronyms after the viscosity listing title didn’t really mean all that much in the grand scheme. Basically the acronyms, additives, and titles just help to make the company more money according to what the markets will bear.