This is not a scientific test by ANY strech of the immagination, but here goes[coffee]

I ran a tank of b99 in my 12v and kept it under 2000 rpm on a trip. the results were messed up by a 10 mile stretch of muddy road, but I got 16mpg on that tank. The next fill-up, I was late and had a mtn pass in the way[nonono] and was playing ALOT!![laugh] I kept the rpm about 2600 over the pass(3.54 gears) and for about 80 miles then around 2200 for 120 miles. I PULLED 16.7 that time!!! Does bio get that much worse? I like running it alot, and it was $.15 cheaper per gal, but I think I would have gotten +2mpg driving nice.

just thought I would throw this out to see if anybody else had this happen. bruce