New Mazda diesel 56 mpg low compression, sequential turbo this year

[Yo Hoot]

Mazda's innovative new diesel technology is becoming a global success, reaching beyond traditional diesel strongholds with unparalleled sales elsewhere. While diesel engines power more than half of all new passenger cars sold in Europe, they are virtually non-existent in Japan, previously representing a mere 0. 4 percent of the passenger car market. Now, in contrast, four out of five Mazda CX-5s (80 percent) sold in Japan have a 2. 2-litre SKYACTIV-D under the bonnet.

Currently, SKYACTIV engines, transmissions, chassis and body technologies are available in the UK on CX-5 compact SUV models, and the all-new Mazda6 Saloon and Tourer - with the addition of the i-ELOOP unique brake energy regeneration system that can boost fuel economy by up to 10 percent.

A perfect example of how Mazda continues to defy convention, the SKYACTIV-D engine has a 14:1 compression ratio - unusually low for a diesel and the lowest currently available - which enhances fuel combustion and efficiency, while reducing harmful emissions, especially of nitrogen oxides (NOx). The remarkably smooth and quiet SKYACTIV-D is the only diesel to comply with Euro 6 emission standards without NOx after-treatment - long before the new standard takes effect in September 2014.

The engine's variable twin turbocharger boosts torque and responsiveness throughout the rev range right up to the unusually high redline of well over 5,000rpm. Yet it still delivers best-in-class fuel economy and CO2 emissions - from 119g/km and up to 61. 4mpg in the CX-5 and from 108g/km and up to 67. 3mpg on the all-new Mazda6 sedan - figures which make SKYACTIV-D a viable alternative to hybrids, and they are a lot more fun to drive.

http://www.automotiveworld.com/news...lean-diesel-technologywins-friends-worldwide/

 

[HBarlow]

I hope they are imported to this country.

Interestingly Japan has made excellent small diesel engines for a very long time. When I was in the Philippines back in the early '80s tens of thousands of Jeepneys (public transport), busses, and trucks either locally hand built with Japanese powertrains or with Japanese brand names traveled the city streets and highways.

 

[Flying_gage]

Agree that it would be nice. Yet the EPA/gov't is killing reasonable vehicle choices for us.