article thumbnail

DTF: Diesel dominates commercial truck, transit and school bus fleets in US

Green Car Congress

Diesel is the predominant technology in commercial trucking, school, and transit bus sectors, according to the Diesel Technology Forum’s analysis of data sourced from S&P Global Mobility TIPNet data of vehicles in operation for Class 3-8 as of December 2021. Of the largest trucks (Class 8) in operation, 97% are diesels.

Diesel 468
article thumbnail

ORNL team achieves diesel-like efficiency with SI engine

Green Car Congress

A team at Oak Ridge National Laboratory (ORNL) has achieved diesel-like efficiency in a single-cylinder spark-ignition (SI) research engine while maintaining compatibility with stoichiometric 3-way catalyst (TWC) systems. diesel engines are expected to meet significant technical barriers in being able to meet future NO x regulations.

Diesel 468
article thumbnail

New study shows a rapid increase of diesel-fueled backup generators across California

Green Car Congress

New research by economic and public policy consulting group M.Cubed finds a proliferation of backup generators across California, with nearly 90% being diesel-fueled, posing significant obstacles to achieving greenhouse gas reduction targets and driving nearly $136 million in annual health costs. Of these, 20,907 are diesel-fueled.

Diesel 480
article thumbnail

Achates opposed-piston 3-cylinder 10.6L diesel emissions meet 2027 EPA, CA requirements

Green Car Congress

opposed-piston heavy-duty diesel engine has achieved performance results that comply with pending 2027 requirements of the US Environmental Protection Agency (EPA) and California to reduce sharply emissions of nitrogen oxides (NO x ). Achates Power’s innovative 3-cylinder, 10.6L Furthermore, the 10.6L Furthermore, the 10.6L Earlier post.).

EPA 508
article thumbnail

Building materials recycler switches fleet to Neste renewable diesel

Green Car Congress

Now, Argent has switched its fleet from petroleum diesel to Neste MY Renewable Diesel. We decided to switch to renewable diesel once our quality and availability concerns were satisfied. We decided to switch to renewable diesel once our quality and availability concerns were satisfied.

Renewable 448
article thumbnail

SwRI engineers develop near-zero emissions diesel engine technology; 90% reduction of NOx

Green Car Congress

Southwest Research Institute engineers have developed the next generation of clean diesel engine technology to reduce hazardous nitrogen oxides (NO x ) and carbon dioxide emissions while minimizing fuel consumption. g/hp-hr NO x emissions).

Engine 545
article thumbnail

Cummins showcases 15L fuel-agnostic engine platform; hydrogen, diesel, biogas

Green Car Congress

At CONEXPO, Cummins showcased its new fuel-agnostic 15-liter engine platform with hydrogen, natural gas and advanced diesel engines offering low-to-zero carbon fuel capability. The advanced diesel version can use either sustainable HVO fuel or biodiesel with ratings up to 650 hp (485 kW) for the most demanding off-highway duty-cycles.

Hydrogen 448