 The Skyactiv-G 2.5-liter turbocharged four-cylinder produces 250 horsepower at 5,000 rpm on 93-octane fuel and 227 hp on 87-octane.Mazda claims the new engine delivers 22 mpg city, 27 highway, and 24 mpg combined in AWD trim regardless of octane.In the U.S. the 2017 Mazda CX-5 was offered with front- or all-wheel drive, in Sport, Touring and Grand Touring (GT) trims.