Diesel Exhaust Fluid has an expiration date, after which it becomes far less effective and can even damage your engine.

Lawmakers have introduced a bill to require the EPA to suspend automatic truck engine shutdowns in cold weather to prevent vehicle stranding. The post Senators target cold-weather truck shutdowns ...

We may receive a commission on purchases made from links. The government's strict emissions limits for combustion-powered vehicles have pushed automakers to develop technologies that let their engines ...

President Donald Trump pardoned Troy Lake on Friday. The 65-year-old Wyoming diesel mechanic spent seven months in federal ...

When International’s engineering team joined forces with MAN and Scania back in 2017 to design a new heavy-duty powertrain from scratch, they started with ...

Having worked through the data, we may have just found the most reliable diesel engine going into 2026. As it stands, there ...

If the 2025 Ram 2500 Limited Longhorn I reviewed not long ago was a dressed-up ranch hand in Lucchese boots and a bolo tie, ...

Coulson Aviation (USA), the world’s largest aerial firefighting company and operator of the most advanced mixed fixed- and ...

Blue Bird stock has posted impressive returns recently, but the run may not be over just yet. Here's what investors need to ...

Ranger and Everest bi-turbo diesels have been discontinued, with upgrades to the single-turbo unit and expanded availability ...

Diesel trucks have long been celebrated for their durability and power, making them a popular choice for a variety of ...

The EPA has for almost 20 years required medium- and heavy-duty diesel vehicles to use Diesel Exhaust Fluid (DEF) and aftertreatment systems to reduce nitrogen oxide (NOx) emissions. In July, the ...