If you are reading our site, you are probably already familiar with the fact that any diesel vehicle can run on biodiesel. As a matter of fact, most any can diesel vehicle can even run on used vegetable oil with just a few modifications. There are some issues with vegetable oil which must first be addressed, one of which is keeping the fuel warm. What many conversion vehicles do to remedy this situation is to heat the vegetable oil and starting the vehicle with regular diesel fuel. A few other modifications are generally made to the fuel system to filter the veggie oil before it gets to the combustion chambers. How would you go about performing these operations? Check out this Instructable for directions on how a conversion was done on an older school bus. A few drums were strapped under the bus with the middle one being preheated before sending fuel to the engine. Check out the mad-max style photo above for a glimpse into this conversion.

Don't have a veggie oil conversion but still want to use heat from your engine for something useful? How about for cooking... click here.

[Source: Instructables]