I was underwhelmed initially and the MPG ratings don't change that.
Basically it is par for the course and nothing that elevates it above its peers. However, it is possible that the real world figures exceed EPA and that data point could potentially differentiate it. So far though, nothing suggests that would be the case. In conclusion, Mazda still has an engine lineup problem.That engine delivers a welcome 250 hp and 310 lb-ft of torque when running premium fuel, and now we know what kind of gas mileage it gets.
Official fuel economy estimates for the 2018 Mazda6 line were posted recently on the EPA’s fueleconomy.gov, and the 2.5-liter turbo version is rated at 23/31/26 mpg city/highway/combined.
The 2018 Mazda6’s 2.5-liter turbo-four is for the most part on par with the turbo 2.0-liters of the midsize class. The new engine comes in 1 mpg shy of the 2018 Honda Accord Sport 2.0T (22/32/26 mpg) in highway mileage but has a 1-mpg advantage in the city. Versus the 2018 Honda Accord EX-L 2.0T (23/34/27 mpg), however, the Mazda6 is rated the same in the city and down 3 mpg on the highway. Meanwhile, the Mazda beats the 2018 Chevrolet Malibu 2.0T (22/32/26 mpg) by 1 mpg in the city, but comes up 1 mpg short on the highway. Compared to the 2018 Ford Fusion 2.0 EcoBoost (21/31/25 mpg), however, the Mazda6 turbo is more efficient in the city. Up against the 2018 Toyota Camry equipped with the 3.5-liter V-6 (22/33/26 mpg), the Mazda is more efficient in the city but sacrifices 2 mpg to the naturally aspirated six-cylinder on the highway.
Just look at the Camry V6 comparison. Combined MPG are identical and the Mazda 2.5 turbo has less power, but more torque. It does 1 better in the city but 2 worse on the highway. I don't really see a major breakthrough there. And I'd still take the N/A V6 just for simplicity. The Mazda engine also wants premium. I'd need to look up the competition there.
Or the Malibu 2.0T. Same power, basically the same efficiency (trades blows in city/highway, while the combined is the same). I do not see a major powertrain breakthrough comparing 2.0T offerings or N/A V6 offerings. I am posting this because when I mentioned the 2.0T compared to the new Mazda 2.5 turbo, Bill scoffed that it was "garbage." Yes, I remember these things.
The Accord 2.0T exceeds all MPG ratings of the new Mazda engine. The Accord has 252 hp. So, again, I don't see this as any kind of contributor to fixing Mazda's engine lineup problem. Unless real MPG testing reveals ~5 mpg better realworld. I guess we will have to wait for a review.