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July 29, 2020

Test Drive: Mack's MD Series [Photos]

The Cummins B6.7 churns out 250 hp and 660 lb-ft. Driver inspection items on the left side are...

The Cummins B6.7 churns out 250 hp and 660 lb-ft. Driver inspection items on the left side are easy to reach, but the Allison fluid level check is a bit of a stretch.

Photo: Jim Park

The Cummins B6.7 churns out 250 hp and 660 lb-ft. Driver inspection items on the left side are easy to reach, but the Allison fluid level check is a bit of a stretch.

Photo: Jim Park
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