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.

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 ...

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 has launched a new resource page that provides crucial information on diesel exhaust fluid quality, purchasing and storage. The information is tailored to meet the ...

Airgas Inc announced its AiRx diesel exhaust fluid (DEF) has been certified by the American Petroleum Institute (API). Airgas Inc announced its AiRx diesel exhaust fluid (DEF) has been certified by ...

As another Canadian winter approaches, can problems with diesel exhaust fluid (DEF) be far behind? Bill O’Ryan, senior manager of DEF with the American Petroleum Institute (API) says drivers and ...