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BUFFALO GROVE, Ill. — Police departments have a lot of vehicles in their fleets and burn through quite a bit of fuel out there on the roads. That’s why Chicago Clean Cities is urging them to look toward alternative fuels to save money and go green.

Representatives from about 30 municipalities in the Chicago area came to Advanced V-Tech today in Buffalo Grove. Chicago Clean Cities hosted the event to show police departments that, in the long run, they’d save money by converting their fleets to compressed natural gas or LPG, liquid propane gas.

Chicago Clean Cities says the switch can save municipalities money while also reducing tailpipe emissions by up to 30 percent.

Several private companies like UPS, Waste Management and Ozinga, have already updated their fleets and are using alternative fuels.

As for everyday drivers, it’s not as practical right now because there aren’t a lot of fueling stations that carry this fuel.