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COMMENT: Growing pressures boost diesel fuel economy

BY ALAN BUNTING. Even higher diesel injection pressures will bring fuel economy benefits, but at increased technological and up-front cost

Notwithstanding recent adverse publicity surrounding their questionable compliance with oxides of nitrogen (NOx) emissions legislation, diesel engines are becoming ever more fuel efficient. Heavy-duty diesel technology continues to advance inexorably, to the benefit of truck and bus fuel usage.

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