Al,
I can agree that modern chemicals can be way advanced over old products. My concern is in the difference in design and application. Yeah, the racing Yamaha engines may be $50,000 each and our lowly Continentals are only around $12,000 each so I'd expect the Yamaha people would choose the absolute best for their application. But their application is days or weeks (probably not months very often) sealing-while-inactive and then minutes or a very few hours of horrendous stress. Ours is weeks or months (sometimes years) of sealing-while-inactive followed by hours of moderate stress. The Yamaha recommended gunk may be the best on Earth for our application. Or, it may be something that turns to powder with a few years of age. I don't know and I have no means of knowing and that's my point. Ed
