Cummins announces fuel economy improvements for heavy-duty lineup
Green Car Congress
MARCH 28, 2014
For the most fuel-conscious fleets, the ISX15 is available with ratings of 400 hp to 450 hp, which deliver peak torque at 1000 rpm. Since 2010, Cummins has made numerous improvements to the ISX15 to deliver up to 7% better fuel efficiency; customers moving from a pre-2010 engine could experience up to 10% improvement.
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