Diesel Maker Works Toward Cleaner Engines
The Environmental Protection Agency last year set new emissions standards for diesel truck engines. Most of those engines are manufactured in the Midwest by Indiana-based Cummins, Michigan-based Detroit Diesel, Pennsylvania-based Mack Truck, and Illinois-based Caterpillar. One of those companies is trying a different approach to meet the new standards. The Great Lakes Radio Consortium’s Jonathan … Continue reading Diesel Maker Works Toward Cleaner Engines
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