Keep the DEF tank fill area and nozzle clean. DEF is supersensitive to airborne and residue contamination. Contaminated DEF will affect SCR system performance and lead to engine de-rating and even engine damage.
Store DEF in dedicated containers, preferably stainless steel drums HDEP plastic totes, or gallon jugs.
Store DEF in a cool, dry location out of direct sunlight.The ideal temperature range is 12-86 degrees F (-11 – 30 degrees C).
Monitor DEF quality with a digital refractometer. The ideal concentration is between 32.5 and 37 percent urea.
DEF can be stored for up to 2 yearsin ideal climate conditions.
Top off the DEF tank dailyto prevent condensation, which can degrade DEF quality.
Low DEF levels will be indicatedby a dashboard light. If the DEF tank is empty, the engine will still run but will start de-rating in a few hours and continue until the DEF is replenished.
Don’t confuse fills.by a If DEF is filled into the diesel tank, the engine will stop running after a short period and can possibly cause serious damage to the engine fuel and SCR system.
Don’t store metal container.by a DEF is not toxic but is corrosive to metals such as carbon steel, aluminum, copper and zinc. Never uses containers that might have been used to store other fluids.
Don’t store below 12 degrees F (-11 degrees C).DEF freezes at 12 degrees F (-11 degrees C) and turns slushy but this doesn’t affect performance. If storing DEF in freezing temps, make sure it is in expandable containers. Never put fuel additives in DEF.