Diesel fuel has undoubtedly taken a lump or two over the last decade-and-a-half. But even Volkswagen's infamous "Dieselgate" scandal couldn't completely derail diesel engines as a viable, more ...

The American Petroleum Institute (API) has been licensing diesel exhaust fluid (DEF) since 2009, and despite its longtime existence, DEF continues to cause some issues for fleets. “DEF is highly ...

Maintaining the integrity of DEF is vital to protect Tier 4 engines, but it may not be as easy as you think. Common elements found around containers and tanks, on your equipment, and in your shop, can ...

GM pickups powered by a Duramax diesel engine offer loads of benefits, including strong low-end torque and impressive real-world efficiency. However, diesel engines also require some specialized ...