If you are looking for high quality organic fuel, buying biodiesel is what you are looking for. Biodiesel blends, a mixture of petroleum diesel and biodiesel, can be used in any diesel engine.
Biodiesel also provides considerably fewer combustion emissions when compared to petroleum-based diesel fuel. Some manufacturers provide vehicles pre-filled with biodiesel blends. Having only natural ingredients, it has no emission that can potentially harm the environment.
Water can cause pitting in the pistons of diesel engines. You can also use vegetable oil that has already been used. It benefits domestic economies by reducing the dependence on importing foreign petroleum.
Having a wasteful attitude has been exacerbated by the lack of proper education in the basic skills of survival. With better gas mileage, lower emissions, and the use of renewable, domestic sources, the upsides actually make biofuel cars a greener option than even hybrids.