Another oil question

[Waterloo]

I don't know, I would stick with 15W-40 conventional, see that green warning at the bottom of that label? Myself, I'm sticking with what the manufacturer recommends, to many unknowns to fool around with such an expensive motor. Just my .02

As far as the transmission oil? I talked to a Delo rep today, their tranny and gear oil's first ingredient, the base oil, is from Exxon/Mobil. Essentially it is Mobil Delvac Synthetic, other than a few additives differences, essentially the same. Personally, after talking to the rep, I would use the Delo, especially if the price is right.