also no conversions are needed to run biodiesel. since biodiesel acts as a cleaning agent you will need to cahnge your fuel filter more often. I ran my first batch through my truck and i loved it. i run super chips also. no loss of power, performance. the only difference noted were a smoother running engine no black smoke, the smell of crab cakes (YES) and put 20 gallons of fuel in for about 28.00. I bought almost all of my stuff off of ebay.