Anyway, the Times' Sunday story on putting straight vegetable oil into a converted Jetta TDI is a good read. The author got a kit from Greasecar and paid about $1,700 for the kit and the installation. Since making the switch about 2,000 miles ago, the Jetta gets "slightly better mileage, it seems to run a little more quietly and it has just as much zip as it does on diesel." A good enough reason to think about converting your diesel, or at least to go read the entire article here.
[Source: New York Times via Treehugger]