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Information about Diesel Exhaust Fluid (DEF) | API Certified Information

What does API DEF certification mean?

The American Petroleum Institute has developed a voluntary quality certification program that ensures North American supplies of DEF will meet the standards mentioned above including standards of product manufacturing, handling, quality assurance, safety and environmental protection. They will do this by testing DEF bought in the field for compliance.

Where to Buy Diesel Exhaust Fluid (DEF)?

 

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