I've been running diesels for more years than I want to think about and know he difference in blends. I'm talking a drop here below what my normal winter blend mileage is, in the neighborhood of another 1.5 mpg. And the only other difference was the three pumps had a sticker on the face showing 10% ethanol added. The last pump used in SC did not have the sticker and the last fuel in Ga did not have that sticker either. In both of the last 2 fillups, my mileage went back to normal. Next?
added - after some reading, I'm wondering if this would be te equivalent of biodiesel ?