The EPA questions if diesel DEF de-rates are essential for emissions compliance. Could changes be on the horizon? Discover ...

The first Diesel engines were started 130 years ago, but they have moved a long way since then. Like their gasoline counterparts, the compression ignited engines have evolved from the rough units of ...

The EPA on Tuesday released its final rules on reduced NOx and particulate emissions for heavy-duty vehicles such as semi-trucks, buses and other commercial vehicles. They’re the first new smog rules ...

This article was originally published by Michael Coates on Clean Fleet Report, a publication that gives its readers the information they need to move to cars and trucks with best fuel economy, ...

Two federal agencies in June announced criminal charges against five parties, alleging they installed devices to disable emissions control systems — a violation of the Clean Air Act, among other ...

Although there is a lot of focus these days on alternative power systems such as batteries and fuel cells, internal combustion engines will continue to play an important role in heavy-duty ...

What regulators are calling a historic and unprecedented agreement between the California Air Resources Board and major truck and engine makers should provide some much-needed flexibility for truck ...

Swiss marine power company WinGD has introduced an on-engine version of its iCER system, enabling the emissions reduction technology to be installed without impact on engine footprint. iCER is the ...

Rolls-Royce is developing a low-emissions combustion system for its turbofan aircraft engines, the ALECSys (Advanced Low Emissions Combustion System) demonstrator engine, that has entered its final ...

SAN DIEGO (KGTV) — This November, the California Air Resources Board (CARB) is expected to tighten emissions requirements for sportfishing and whale watching vessels, but industry leaders say the ...