Mazda rethinks the Diesel engine with fewer emissions, max efficiency

How Mazda Reinvented the Diesel Engine
By Lawrence Ulrich, popsci.com

The company’s new diesel engine will get 44 mpg plus meet strict emission standards.

Diesel-engine design­ers have long grap­pled with a dilem­ma: Reduc­ing emis­sions meant either cut­ting effi­cien­cy or adding expen­sive equip­ment. With the…

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