Blackstone told me today that they have no evidence you need to change oil more often with E85. I got a grade-A report from them after a longer interval between changes than I had planned. With 40,000 miles total and after 5400 miles on the oil, most of the metals were a shade lower than averages. No coolant or fuel contamination. About 2,000 of those miles were With E85. I'm planning oil changes at 4,000 henceforth, but not because of E85. That motor is reliable enough, I guess, but the oiling system could be better, and it sees 7 grand routinely.
Oh...and the TOB growled at me for the first time today.
