SAN ANTONIO -- Nov. 12, 2019 -- Southwest Research Institute engineers developed a new certification cycle, the Low-Load Cycle (LLC), to gauge the performance of heavy-duty diesel engine ...

Ddiesel engines have their benefits, it's just that quick acceleration isn't one of them. They're limited in rpm compared to gas engines, due to factors like their higher compression ratios, and that ...

Purdue University’s Greg Shaver doesn’t believe there should be a trade-off between protecting the air we breathe and achieving better engine efficiency of large vehicles on the road. Shaver, a ...

Recently, the Diesel Technology Forum came out with a truckload of positive diesel emissions data that may even offset all those private plane trips celebrities and politicians take to clandestine ...

Internal combustion engine blowby, whether gasoline or diesel, occurs when part of the compressed mixture of air and fuel leaks past the piston rings during the compression or power strokes of a ...

Gearhead vehicle discussions often go something like this: "How fast?" "What's the e.t.?" "How much boost?" "What's the horsepower and torque?" Whether bragging or fact, the answers are usually the ...

In March of 1978, the International Harvester Corporation started development of an engine that would eventually change the way pickup trucks and light-duty vehicles would be powered. The 420ci (6.9L) ...