If the time has come for you to replace your aging car, it may also be time to think about buying an alternative fuel-powered vehicle. Made from used vegetable oil, biodiesel fuel is considered one of the most cost efficient and environmentally friendly sources of energy.

The fleet vehicles of many companies use only biodiesel fuel. Much of such a company's expenses are directed towards fuel costs so finding a cheaper alternative is essential for the bottom line. You may have noticed buses, garbage trucks and construction vehicles in your area carrying a sticker identifying them as a biodiesel car.

Manufacturers are in fact now designing vehicles that run solely on biodiesel fuel. A biodiesel conversion kit is now being offered by some car manufacturers. If you are already driving a diesel vehicle, after installation of the kit you'll be running a biodiesel vehicle.

Any vehicle that uses a petroleum based diesel fuel can also run on biodiesel. If your current car or truck is diesel-powered, consider changing over to biodiesel. You'll instantly be driving a biodiesel car that could save you thousands of dollars a year in fuel costs.