Recycled restaurant grease can power your car

After a good meal, how about asking the head waiter if you can take the waste grease from the kitchen to fuel your car?

In the search for sustainable and non-polluting alternatives to fossil fuels, a small band of ecologically minded people are turning to vegetable oil and recycled restaurant grease to run their cars, trucks and even home-heating systems.

Entrepreneurs, some backed by public funds, are proving cars can be run on low-cost materials that are a readily available alternative to environmentally damaging fossil fuels.