Matt Robinson profile picture Matt Robinson 10 days ago 22
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Mazda's Clever 175bhp Petrol Engine Does 52mpg And Emits Only 96g/km

Mazda has finally confirmed the specs of its revolutionary SkyActiv-X high-compression petrol engine

Remind me later
Mazda's Clever 175bhp Petrol Engine Does 52mpg And Emits Only 96g/km - News

When Mazda launched its all new 3 not so long ago, there was a conspicuous absence from the engine line-up: the much-anticipated SkyActiv-X high compression engine. But it’s due to join the range soon, and now Mazda has confirmed the specs.

The 2.0-litre engine is good for 175bhp at 6000rpm and 165lb ft of torque at 3000rpm, and yet, it’ll do 52.3mpg according to the much more stringent WLTP cycle, dropping to 50.4mpg if you spec the 18-inch wheels. In terms of CO2 emissions, it puffs out just 96g/km.

Mazda's Clever 175bhp Petrol Engine Does 52mpg And Emits Only 96g/km - News

The SkyActiv-X uses a concept called Homogenous Charge Compression Ignition. It works with a much leaner fuel/air mix than other petrol engines, which under normal conditions wouldn’t ignite. This is then compressed almost to the point of ignition, at which point the spark plugs fire, causing an expanding fireball which triggers the correct conditions for combustion to occur.

Clever tech, in other words, and it’ll be used in the creation of Mazda’s all-new straight-six.

Mazda's Clever 175bhp Petrol Engine Does 52mpg And Emits Only 96g/km - News

To increase efficiency further, Mazda has added its ‘M Hybrid technology’ - a 24-volt mild-hybrid system which recovers energy when the car is decelerating, ready to deploy once it’s on the move again. This tech appears on all 3s.

The SkyActiv-X-powered Mazda 3 will be on sale later this year for a yet-to-be-revealed figure. To give you some idea of how it might cost, the entry-level, 120bhp SkyActiv-G hatchback starts at £20,595.