BIO or non BIO fuel ?

wvabeer wrote:
Are there certain brand stations that don't sell bio?

Not that I know of. There are several states, notably Iowa and Illinois where getting diesel that is NOT a bio blend is almost impossible. In Illinois, nearly all diesel is 11% because there are substantial tax advantages.

Folks doing the voodoo hex sign and chanting "NO biodiesel, No biodiesel" would be best served avoiding those states, although even the engine manufacturers still insisting no more than 5% (or 7% in the case of my BMW) say a tank or two won't hurt anything. I know for a fact that on the return from our last excursion out west, I got a tankful of 15%, followed by a tankful of 20% and had no issues.

Pure biodiesel does offer about 10% less energy per gallon than petrodiesel. At a 10% blend, this suggests about a 1% reduction in mileage, which most people would never notice. Having used blends from 20% to 50% to even 100% in our 2001 Jetta TDI, I hardly noticed any mileage reduction until I got up to 50% or above. Some people do see it, it probably does depend on your rig.