The diesel engine was invented in the 1890s and has been in use in commercial vehicles and passenger cars for over a century. Diesel engines remain popular for their reliability and fuel economy, ...

The fuel and exhaust systems inside diesel engines work closely together. As a result, fuel- and exhaust-related issues can be some of the most difficult to diagnose: A symptom in one system often can ...

Normal-sized diesel-powered cars capture a significant foothold in a huge market outside the U.S., here’s why.

When Ford launched the 6.4L Power Stroke V-8 diesel engine in 2007 as part of its F-Series trucks, Ford enthusiasts expected it to be unlike its predecessor, the 6.0L Power Stroke. Although Ford ...

Diesel engines have a steadfast reputation for reliability, longevity, and pumping out gobs of grin-inducing, low-end torque. The latter makes diesels preferable over gas engines for hauling, towing, ...

The U.S. Environmental Protection Agency (EPA) is escalating its response to consumer complaints regarding Diesel Exhaust Fluid (DEF) system failures, announcing a new investigation aimed at major ...

If you have a diesel-powered vehicle that's been sitting unused for more than a few months, you might be wondering if its fuel has ended up going bad.

As a result, fuel and exhaust-related issues can be some of the most difficult to diagnose: A symptom in one system can often arise from a problem in the other. Here are three common fuel and exhaust ...