MADISON, Wis. -- A Madison pizza company is running two delivery vehicles on waste oil from the fryers.

Glass Nickel Pizza creates 240 gallons of waste oil each month in its fryers which it can use to drive 3,000 miles a week -- avoiding high gas prices.

Co-owner Tim Nicholson said he used to pay $50 a month for disposal of the oil.

Converting a diesel car to run on vegetable oil costs less than $1,500. Even though the waste oil is free from restaurants, you do have to filter it before it can be used in the engine.

Glass Nickle driver manager Ben Thomlison said they can drive the cars for nine hours without shutting them off.

For more information on converting, visit Greasecar.com or Veggievan.org. To have a car converted locally call (608) 212-2247.