I snagged an almost new 500 gallon tank and gasboy pump off craigslist the other day with almost 300 gallons of b100 (pure soy) for $295. Hardest thing was getting it on the trailer after backing it in between a slew of kayaks. I mixed it 50/50 in the Takkie and my Ford 7.3 powerstroke - they seem to like it. Stinks pretty bad. Makes the smoke alarm go off really quickly in the barn when I park the Takkie, but makes the Ford noticeably quieter and smoother (165k miles). Guess I'll have to watch the gel factor this time of year with the temps dropping.