How does using vegetable oil to run my vehicle affect the vehicles gas mileage?
The energy in a gallon of vegetable oil is 7% lower than the energy in a gallon of diesel oil, thus you could expect to see a decrease in gas mileage of 7%, which is negligible. But, also considering that the vegetable oil can be gotten at a price reduction of at least $0.80 per gallon, compared to diesel, and, that the use of vegetable oil as a fuel promotes the reduction of global warming, you’re way ahead using vegetable oil over diesel whenever you can.
