As reported by Autonews, Mazda’s powertrain head, Mitsuo Hitomi, revealed that the new engine will be named under the Skyactiv-3 brand and its main goal is to boost thermal efficiency which in turn reduces the amount of combustion energy lost to heat and increases the amount that can be used.
Hitomi explained that it they can increase the thermal efficiency of its engines by 27 percent to a total of 56 percent, their cars can then achieve emissions on par with those of an electrified vehicle. Furthermore, if carbon dioxide emissions can be cut by 25 percent, Mazda’s gasoline engines will be able to go wheel-to-wheel with EVs when it comes to fuel economy.
In comparison, Toyota's Prius, which made headlines when it came to thermal efficiency, only achieves 40 percent.
That said, no timeline was given for the arrival of the new generation Skyactiv-3 engines.