I filled up today for the first time with B20 in DE. Paid 3.559/gal which was pretty steep considering that straight #2 was 2.735. However, I've always wanted to run bio and this was my chance so it was worth the extra bucks. I noticed a couple of things and I'm wondering if ya'll have experienced the same. The engine seemed to smooth out overall and it was considerably quieter at highway speed. I know that could do this at B50 or B100 strenght but I didn't expect it with B20.