Diesel engines like the 3.0L Duramax require special maintenance, including the use of DEF, or Diesel Exhaust Fluid. Now, GM ...

The American Petroleum Institute (API) recently issued a bulletin stressing the importance of only using certified diesel exhaust fluid (DEF) for the diesel-powered vehicles that require the fluid.

Several companies that blend diesel exhaust fluid, the urea solution used in truck engines with selective catalytic reduction systems, have had their blends certified by the American Petroleum ...

The American Petroleum Institute (API) has published a new resource page on best practices for purchasing and storing diesel exhaust fluid (DEF). “The API DEF Consumer Guidance offers consumers and ...

Adding diesel exhaust fluid to trucks has become fairly routine, despite some of the anxiety that came along with the debut of this new fluid a decade ago, needed to cut emissions using selective ...

Airgas Inc announced its AiRx diesel exhaust fluid (DEF) has been certified by the American Petroleum Institute (API). DEF is used in selective catalytic reduction (SCR) technology to reduce harmful ...