I left Vehicle Testing Services, a San Antonio, Texas, facility where Detroit Diesel is testing its VNT EGR engines, in a Century Class Freightliner. Chuck Blake, Detroit’s application engineer, and ...

I pulled the 435-hp VNM 64T day cab out of Volvo headquarters in Greensboro, N.C., grossing 70,000 pounds. I noticed that typical turbo sounds were lacking, replaced by a slight whistle as the turbo ...

There are times in life when we must endure that which is unpleasant for the greater good of all. And while it may not be high on that list for some, vehicle emissions equipment has certainly become ...