Boise, Idaho is certainly famous for its potatoes, and just about everyone’s favorite way to have those spuds are french fried. A local cab company is looking to take advantage of all that leftover cooking oil by turning it into biodiesel to run in its vehicles. KBOI-TV reports that Recab wants the idea to catch on in other cities in America’s Northwest:

Recab will soon have older model Mercedes Benz cars that have been converted to run on bio-diesel. One of the owners James Orr got the idea from his love of vintage cars and the environment.

“Whenever I realize these cars are as reliable as they are and they could be used in such an eco friendly way that’s what spawned the whole concept,” said Orr.

The company expects its french-fry-powered cabs to be on the road in a couple of weeks.