EGR stands for exhaust gas recirculation, and the EGR valve is part of a system that does as the name implies: recirculate exhaust gas back into the engine’s intake manifold for a return trip to the ...

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 ...

Read how other engines performed in Overdrive‘s test drives. Childers, a driver for Hartford Trucking of Hartford, Kan., drives a 9900 series International with a Cummins 550 N14. He pulls plenty of ...

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 ...