Is Def Fluid Blue? (The Reason Why It Is In This Color)
Diesel Exhaust Fluid (DEF) is indeed blue, a distinguishing characteristic that helps in identifying it. DEF is a non-hazardous solution, composed of 32.5% urea and 67.5% deionized water. This specific ratio is critical for its function in Selective Catalytic Reduction (SCR) systems in diesel engines. The blue color of DEF is not just a random […]
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