Every little bit of efficiency a fleet can squeeze out of engines can go a long way in maintaining a healthy profit margin. Even for fleets that spec the latest in aero kits, low rolling resistant ...

Iridium (Ir) HC deNOx catalyst system for industrial heavy-duty diesel engine was investigated. The emission performance of the engine used for this examination satisfied EPA Tier 1 regulation. Though ...

Diesel engines are coming under stricter requirements to reduce emissions, particularly those of particulates and nitrogen oxides (NOx). Recently, the U.S. EPA put into place staged requirements for ...

Diesel is expensive, and it isn't getting any cheaper. European nations have complained for years about gas and diesel prices that can be as high as $5 per gallon, and it looks like it's finally our ...

How Does Cylinder Deactivation Save Fuel? Towing a big trailer up Davis Dam may require a big, burly V-8 engine, while cruising along a level freeway when that same truck is empty barely requires a ...