The 2016 Chevrolet Colorado has an EPA-estimated fuel economy of up to 22 mpg city/31 mpg highway with the 2.5L 4-cylinder engine, up to 18 mpg city/26 mpg highway with the 3.6L V6 engine, and up to 20 mpg city/28 mpg highway with the 2.8L Duramax turbo-diesel engine.