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09
Oct
What is Diesel Exhaust Fluid and Why Should Truckers Care?
In 2010, the Environmental Protection Agency (EPA) announced that all diesel engines are required to use a selective catalytic reduction (SCR). SCR is powered by a consumable fluid called diesel exhaust fluid (DEF) which is composed of deionized water and a pure form of urea (composed of nitrogen, hydrogen, carbon and oxygen). Together, DEF and SCR increase fuel efficiency and reduce emissions.
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