Vegetable oil as a propellant

This book seeks to show that not only the classic propellant produced from fossil fuels, i.e. gasoline and diesel, is suitable for the operation of internal combustion engines, but also vegetable oil, which can be considered a renewable raw material. However, vegetable oil costs half as much as gasoline and is a third cheaper than diesel. Vegetable oils are very similar to diesel. They are not suitable for use in Otto engines due to their low tendency to ignite. So if you want to drive with vegetable oil, you need a diesel vehicle.