Diesel exhaust fluid (DEF) doesn’t require a lot of attention, but with summer ready to heat up, precautions should be taken to protect the fluid from the impact of high temperatures, which can ...

For fleets storing diesel exhaust fluid (DEF) in areas where the temperature does not approach the fluid’s freeze point of 12 deg. F, Gasboy has unveiled a new storage option designed to reduce total ...

Diesel owners who have wrestled with warning lights, sudden power loss or even complete shutdowns tied to diesel exhaust fluid systems may finally be getting some relief. The U.S. Environmental ...

The short answer to why Diesel Exhaust Fluid doesn't work in the cold: It freezes at 12 degrees Fahrenheit. Comprised primarily of deionized water and urea, DEF serves to help make large diesel ...

DES MOINES, Iowa (IOWA CAPITAL DISPATCH) - U.S. Environmental Protection Agency Administrator Lee Zeldin announced guidance Tuesday for engine and equipment manufacturers to prevent sudden shutdowns ...

If you regularly drive a modern-day diesel-powered vehicle, chances are, you know what Diesel Exhaust Fluid (DEF) is. A crucial component used by most modern vehicles with diesel engines, DEF — which ...

Evan Williams is an automotive journalist and mechanical engineering technologist with more than a decade of experience in the industry. He has written for the Toronto Star and AutoTrader Canada and ...

Diesel Exhaust Fluid systems have been plagued with reliability issues, raising questions about the EPA's approach to ...