April 18, 2013
Melissa Burden

General Motors Co. said Thursday its all-new 2014 Chevrolet Cruze Clean Turbo Diesel achieves an Environmental Protection Agency-rated 46 miles per gallon on the highway, which is the best highway fuel economy of any non-hybrid car in the United States.

That's higher than GM said in February, when it announced the Cruze diesel would get 42 mpg on the highway. Chevy said testing was still under way at the time.
 
"We harnessed generations of diesel expertise to adapt our world-class global engine for the North American market," said Gary Altman, chief engineer of the Chevrolet Cruze diesel, in a statement. "The Cruze diesel is the best diesel passenger car out there. Chevrolet is redefining the meaning of great fuel economy with this car."
Source
The Detroit News