Bio is inescapable and I had my first taste of it in Florida last year...I changed my fuel filters after 16000 miles and I had to fill up in NC on way back from Georgia a few weeks ago..yep, Wilco was selling biodiesel B15 and I've never had an issue with truck stop diesel so I filled up...headed out soon back to Florida..as long as you burn the stuff and change your filters once a year plus carry spares (which I do) I can deal with it..Not my first choice of course but it is rammed down everyone's throat...