DEF Additive
Has anyone done the cost comparison for the cost of DEF at the pump compared to at the store in a container? Which is cheaper?
Forum Discussion
Walmart brand DEF in 2.5 gal is not too bad, about $8. still cheaper at the pump, but fuel fill in the front, DEF in the rear. Have to move to use it. But will be doing so as my local Walmart seems to be forgetting to order DEF lately!
