Combining gas and diesel engines could yield best of both worlds

Argonne National Laboratory
May 4, 2011

It may be hard to believe, but the beloved gasoline engine that powers more than 200 million cars across America every day didn't get its status because it's the most efficient engine. Diesel engines can be more than twice as efficient, but they spew soot and pollutants into the air.

Could researchers at the U.S. Department of Energy's Argonne National Laboratory engineer a union between the two combining the best of both?

Steve Ciatti, a mechanical engineer at Argonne, is heading a team to explore the possibilities of a gasoline-diesel engine. The result, so far, is cleaner than a diesel engine and almost twice as efficient as a typical gasoline-powered engine.
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