DEF May Cause More Pollution Than It Reduces

DEF (Diesel Exhaust Fluid) is 32% Urea (a substance in the urine of mammals) and 67% purified water. It is sprayed in the diesel exhaust system by a complicated system to mildly reduce emissions of NOX. The sources for Urea (now in very short supply causing the price to rise) … Continue reading DEF May Cause More Pollution Than It Reduces