Diesel exhaust fluid is one of the key elements of the Selective Catalytic Reduction (SCR) process used by most medium and heavy-duty engine builders to meet EPA 2010 regulations. BlueDEF™ is a Diesel Exhaust Fluid produced by Old World Industries that is guaranteed to meet the Standards of ISO 22241 and is API certified which ensures optimum performance of your Selective Catalytic Reduction (SCR) system.
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