[Stay on top of transportation news: Get TTNews in your inbox.] As state and federal clean-air regulators move forward with plans to further reduce nitrogen oxide and particulate matter emissions from ...

Southwest Research Institute (SwRI) has developed a method to automate the calibration of heavy-duty diesel truck emissions ...

SAE International Journal of Engines, Vol. 2, No. 1 (2009), pp. 77-82 (6 pages) ABSTRACT Automotive manufacturers and engineers have paid attention to promoting engine performance with low emissions ...

A team of engineers at the University of New South Wales (UNSW) in Sydney has figured out a way to run a diesel engine on a mix of diesel and hydrogen, dramatically lowering its emissions. Why do we ...

UNSW researchers have prototyped and tested a retrofit system that converts diesel engines to run on 90% hydrogen, radically reducing both carbon dioxide and nitrous oxide emissions while boosting ...

Cummins released details of its 2027 X15 diesel engine, which it says meets EPA 2027 emissions requirements while improving fuel economy — and without adding weight or using more diesel exhaust fluid.

NOx emissions from diesel vehicles, which have proven to be much higher in the real world than predicted in laboratory conditions, have even been blamed for tens of thousands of premature deaths. But ...