The Secrets of SCR

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Jim Park’s Truck Talk
Volume 1 Number 18

Most will have heard of SCR by now, but there’s still more than a little mystery to Selective Catalytic Reduction — the NOx reduction strategy of choice for five out of the six North American heavy-duty engine makers going into 2010. At this point, SCR is looking like a good news story overall. It’s proven technology; it is widely used in Europe, and it’s been in service over there for more than five years. But a few concerns remain on this side of the pond: issues of weight, cost, and availability of diesel exhaust fluid are still being worked out.

David McKenna, the Powertrain Products Marketing Manager at Mack Trucks joins us on Truck Talk this week to shed little light on Selective Catalytic Reduction. We were together recently for a road test of an SCR-equipped Mack Granite dump truck. We recorded this interview in Dave’s car while driving from the customer’s facility in Skippack Penn. back to my hotel in Allentown.

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Jim Park was a CDL driver and owner-operator from 1978 until 1998, when he began his second career as a trucking journalist. During that career transition, he hosted an overnight radio show on a Hamilton, Ontario radio station and later went on to anchor the trucking news in SiriusXM's Road Dog Trucking channel. Jim is a regular contributor to Today's Trucking and Trucknews.com, and produces Focus On and On the Spot test drive videos.


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