The 2018 Mazda6 lineup was enhanced with the addition of a turbocharged, four-cylinder engine.
Revealed at the 2017 L.A. Auto Show, the 2018 Mazda6 gains a 2.5-liter turbocharged four-cylinder engine borrowed from the CX-9, generating 250 horsepower and 310 pound-feet of torque. Now, the Environmental Protection Agency (EPA) has put it to the test, revealing that the turbocharged engine returns 23 mpg in the city and 31 mpg on the highway for a 26-mpg combined rating.
That’s compared to the 2.5-liter naturally aspirated four-cylinder engine that is rated at 26-mpg city, 35-mpg highway, and 29-mpg combined when equipped with a six-speed automatic transmission. Rowing your own gears in the 2018 Mazda6 nets 24 mpg in the city and 33 mpg on the highway, for a 27-mpg combined rating.
That keeps the 2018 Mazda6 competitive within its segment. The 2018 Honda Accord can be had with a 2.0-liter turbocharged four-cylinder engine that generates 252 hp and 273 lb-ft of torque, while returning 23 mpg in the city and 34 mpg on the highway, resulting in a 27-mpg combined rating. There’s also the Toyota Camry V6, boasting 301 hp and 267 lb-ft of torque, but it is rated at 22-mpg city, 33-mpg highway, and 26-mpg combined.
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