What’s the Skyactiv-X mpg?

The New SKYACTIV-X Engine is Crazy Efficient

Unfortunately for the US, we still don’t know when we’ll be getting the SKYACTIV-X engine, except that it’ll be available on select 2020 models (so within the next calendar year). However, the 2020 Mazda3 with SKYACTIV-X motor is already available in Europe. That means two things: 1. A US release probably isn’t all that far behind. 2. We have definitive performance specs in real world conditions. Spoiler alert: the SKYACTIV-X engine is ridiculously efficient.

So, what’s the SKTACTIV-X mpg?


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close-up of the 2020 SKYACTIV-X engineImproved MPG

The European 2.0L SKYACTIV-X engine puts out 178 horsepower and 165 pound-feet of torque. Compared to the current American 2.5L SKYACTIV-G engine that produces both 186 horsepower and pound-feet of torque, that’s not a very drastic cut. What is drastic, though, is the increase in fuel economy.

The European WLTP rates the 6-speed manual Mazda3 FWD sedan at 5.4 litres per 100 kilometers. That converts to around 44 mpg. The American EPA is more stringent in its rating procedures, so US customers can expect that number to fall a bit when the engine becomes available in the States. For reference, the current 2020 2.5L SKYACTIV-G Mazda3 sedan gets an EPA-estimated 30 combined mpg.

Hybrid Integration, Diesel-like Economy

The key to the SKYACTIV-X performance is its innovative Spark Controller Compression Ignition system. Basically, it allows an ultra-lean, diesel-like ratio of air/fuel mixture. This is coupled with a 24-volt mild hybrid system that harvests energy during braking and deceleration. Together, they provide the SKYACTIV-X with those improved efficiency numbers.

You may have noticed that we said “hybrid system.” This is a major development, as Mazda currently has no hybrid offerings, but has now shown intention to develop some. Mazda CEO Masamichi Kogai stated that the “SKYACTIV-X [is] designed to work alongside electrification. It can work as a standalone power unit or in hybrid and plug-in hybrid vehicles.” Check out his full statement regarding the SKYACTIV-X engine here.


Want to test drive a SKYACTIV-X as soon as its available? Contact us at Hall Mazda near Milwaukee. We’re happy chat with you about availability and let you know when the new models come in.