Carl's fried fuel

This speaks for itself.

The oil used to cook fries at Carl's Jr. restaurants in Arizona is getting a second life as fuel for the fast-food chain's vehicles.

The company that franchises most Carl's Jr. outlets in the state plans to convert its fleet, including cars and trucks used by repair technicians and regional vice presidents, to run on waste vegetable oil instead of gas by 2010.

Five of the 20 vehicles in the fleet are already running on used fryer oil from Carl's Jr. restaurants...