The Cincinnati Enquirer reports that buses in the city and the surrounding county ran on biodiesel, saving the city $450,000 last year.

(The metro area’s) 390 buses used about 3.6 million gallons of fuel last year – half of which was biodiesel.

But, there is one adjustment that has to be made for the city’s cold winters…

During warm months, Metro fueled all buses with a blend made of up to 75 percent of biodiesel. It switched back to 20 percent biodiesel blend in colder months because the biodiesel can jell in cold weather.

Either way, it’s another city in the heart of soybean country making use of a plentiful, renewable, close-to-home source of energy.