Vehicle EPA Fuel Economy Driver MPG Fuel Type Annual Fuel Cost MSRP Energy Impact Score Greenhouse Gas Emissions (tailpipe) 2016 Mazda 2 1.5 L, 4 cyl, Automatic (S6), Regular Gasoline It's still a great choice if you're looking for a full-size truck. Most fuel-efficient 2WD variant (3.0-liter turbodiesel V6): 23 mpg combined, 20 city/28 highway. Most fuel-efficient 4WD variant The Mazda 6 does have a few minor shortcomings, the most notable being middling fuel economy and the cabin's occasionally cheap plastics. At the same time, there are some newer family sedans that Fuel economy of the 2016 Mazda Mazda3. 1984 to present Buyer's Guide to Fuel Efficient Cars and Trucks. Estimates of gas mileage, greenhouse gas emissions, safety ratings, and air pollution ratings for new and used cars and trucks. Fuel economy is one of the strongest points of the Mazda 6. The Mazda 6 has a fuel economy of 25 mpg in the city and 37 mpg on the highway with manual transmission. With the automatic transmission, the Mazda 6 returns a city mileage of 26 mpg and highway mileage of 38 mpg. This is a very high economy for a mid-size sedan, and very impressive EPA Fuel Economy Equivalent (for hybrid and electric vehicles), combined/city/highway (MPGe) N/A / N/A / N/A. Fuel Tank. 2016 Mazda 6 sedan; 2015 Mazda 6 sedan; 2014 Mazda 6 sedan; 2020 Mazda6 Gas Mileage . With its base engine, the Mazda6 gets an EPA-estimated 26 mpg in the city and 35 mpg on the highway. That’s about average for a midsize sedan. With the turbocharged engine, fuel economy drops to 23 mpg in the city and 31 mpg on the highway. Read more about Mazda6 performance » 2020 Mazda6 Interior Fuel Economy of the 2016 Mazda 3 5-Door. Compare the gas mileage and greenhouse gas emissions of the 2016 Mazda 3 5-Door side-by-side with other cars and trucks vWPKsXi.