With gas prices rising to $3.50 per gallon for unleaded, the Carroll County (Ga.) Sheriff's Office is saving about $105,000 a year by using propane-fueled vehicles, reports the Times-Georgian.
The department now has 36 patrol cars in its fleet that act as hybrid propane vehicles. For the conversion, a separate propane fuel system is added that allows the vehicles to switch between propane fuel and traditional gasoline.