Federal investigators estimate hundreds of thousands of Americans have illegally rigged their diesel pickups to collectively emit 16 times the level of pollution they otherwise would have over the ...

Dieselcraft Fluid Engineering has introduced its Fuel Test #W-1, an early warning system to test for 200 ppm suspended water in diesel fuel, jet fuel, kerosene and gasoline. “It tells you water is ...

GreenMan Technologies says its American Power Group Inc. subsidiary has received a Vehicular Memorandum of Exemption and eleven initial Test Exemptions from the U.S. EPA for the testing and ...

One company thinks it has the answer for truck operators that want to use natural gas but are concerned about range issues: a dual-fuel system that can be retrofitted to existing diesel engines.

Hayden Nelson, a technician at the Provo Car Doctors, examines a Kia Optima during an emissions test at the repair shop on Wednesday, Jan. 2, 2019, in Provo. The new light duty diesel emissions and ...

State testing found contaminated diesel fuel at a Sandy Run gas station after the South Carolina Department of Agriculture ...

Diesel-fueled engines have long attracted boaters with the prospect of great efficiency, range, durability, torque and safety thanks to the low volatility of this fuel. With few exceptions, however, ...