VIDEO REVIEW: Cummins X15 Performance Series

The Performance Series carries forward the best attributes of the ISX15 platform, provides an ideal power match for heavy-haul, vocational and emergency vehicles. The X15 Performance Series features an optimized compression ratio and cam profile to increase both fuel efficiency and performance capability, and upgraded high flow air-handling system gives a faster pedal response, for enhanced driveability at full payload and on steep climbs. …Read the rest of this story

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