Do I need to winterize my pump to prevent the DEF from freezing and cracking the pump?
Yes... but don't let it freeze. Don't use antifreeze.
You cannot use any liquids to winterize your pump like antifreeze. These fluids can contaminate the system and may ultimately cause problems with the SCR System. We recommend you let the pump run dry to get the maximum amount of product out of the pump prior to storing for the winter. The best solution is to store the pump in a heated area above 12 degrees to prevent the liquid from freezing in the pump.
