With more than 35 years of engineering behind it, Cummins’ L9 medium-duty engine didn’t require an entire redesign this year, but the Columbus, Ind.-based engine maker did have to meet the stricter ...
Both on- and off-highway versions of the B6.7 and L9 engines plus all their vintages are now approved to use paraffinic diesel fuels in North America. Engine maker Cummins Inc. announced that its B6.7 ...
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