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Wednesday, July 6, 2022

Mazda's Next-Gen 3.3-liter 6-Cylinder Diesel Offers Up To 254 Horsepower, Does Up To 24.8 km/L


Mazda has announced more details surrounding its all-new diesel engine for use in its Large Product family. Starting with the CX-60, the 3.3-liter e-Skyactiv-D inline-6 combines a “right sizing” concept together with a mild-hybrid system.

Part of Mazda’s Multi-Solution approach, this new 3.3-liter e-Skyactiv-D is touted to be one of the cleanest diesels in the world with a thermal efficiency of over 40 percent. The secret is a new combustion technology called Distribution-Controlled Partially Premixed Compression Ignition (DCPCI) Technology. The carmaker has yet to reveal the technicalities of the tech, but it does result in “outstanding driving range, performance, frugal fuel consumption, and low emissions.”

There are two states of tune for the new engine—200 horsepower for the rear-wheel drive variant, and 254 horsepower for all-wheel drive variants. Both come with a 48-volt Mazda M Hybrid mild hybrid system.

Granted the peak power isn’t impressive, it was done so that the CX-60 could achieve key performance parameters including a 0 to 100 km/h time of about 7.4 seconds, an average fuel consumption reaching 24.48 km/L, and CO2 emissions capped at 137 g/km. In fact, Mazda says the new 3.3-liter inline-6 gives the CX-60 a 2,500-kilogram towing capacity, yet it weighs similar to the 2.2-liter Mazda Skyactiv-D 4-cylinder diesel engine used in the Mazda CX-5.

Plus, the inline-6 configuration produces less vibration due to its characteristic ‘perfect balance’ which should give it a smooth and quiet engine tone. It should also deliver a cleaner, more engaging sound.

Starting with the CX-60, Mazda is also introducing a new 8-speed automatic. The new transmission shifts gears in the same manner as a torque converter gearbox—via planetary gears and multi-plate clutches—but it does not have a hydraulic converter as an input clutch, instead it has a multiplate clutch as well as an integrated electric motor/generator. The main advantage, Mazda says is that torque is transmitted directly with a “similar fast and rhythmic shifting feel akin to a manual transmission.” Basically, it sounds like their own take on dual-clutch technology.

With the launch of the CX-60, Mazda takes another important step in its fleet’s emission reduction on its way to become entirely carbon neutral by 2050. In all, they are launching five new electrified products in the next three years that feature its multi-solution platform architecture.

After 2025, the company will launch its brand new Skyactiv EV Scalable Architecture which will allow Mazda to efficiently build electric cars of all sizes using one common platform.

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