Purchasing Fuel

Today I drove over to GoodOil and purchased 10 gallons of filtered WVO for the car, paying a grand total of $15 for a fill up (our veg oil tank holds 13 gallons but it's still a quarter full). I also filled up the diesel tank for $27.09 ( 9.67 gallons @ $2.79). On the highway the Jetta is rated at 45 mpg so conceivably we could drive 1170 miles before spending another penny on fuel. Obviously we want to do most of our driving on the WVO, using the diesel only to warm the engine after initial starts.