The 3.0L Duramax has been under the hood of quite a few GM models, but it's not perfect. Here are the most common reported ...

In 2016, Nissan introduced a Cummins-powered engine option for the Titan pickup truck, a model that had already earned a ...

Here are four of the most common DEF problems and how to solve them. Problem: Low DEF. The DEF warning light usually turns on or flashes to indicate there is not enough DEF in the system.

The problem came from emissions. That’s where DEF came in. DEF is a combination of vehicle-grade synthetic urea and de-ionized water that the DEF system injects into a diesel engine’s exhaust.

The sudden 5 MPH engine derate for DEF issues may be on its way out. The EPA has proposed a new tiered system to give drivers more time to find a safe location for repairs. Learn how this will ...

The EPA on Tuesday said new trucks won't derate due to DEF system faults nearly as quickly or severely, and announced plans to modify software on all existing trucks to extend the timing for derates.

Diesel exhaust fluid, or DEF, is a key component in lowering pollutants emitted from diesel engines, helping to improve efficiency and reduce emissions.

With nearly 20,000 miles on our 2024 Chevy Silverado ZR2 pickup, we have discovered it has quite a thirst for diesel exhaust fluid.

The U.S. Environmental Protection Agency (EPA) issued new guidance to engine manufacturers on Aug. 12 regarding diesel exhaust fluid (DEF) systems to prevent unnecessary engine shutdowns and power ...

Farmers, Truckers and Gear Heads Rejoice: EPA Rolls Out Streamlined Diesel Engine Fluid Guidelines Now farm tractors, combines and sprayers can be configured so there is no impact on engine power ...