Originally Posted by FunfDreisig

So a careful shade tree mechanic could do a complete 6.5gal DEF fill up, using the easier to handle 1 gal containers, for less than $50, including the funnel

BTW has anyone used one of the special BMW DEF bottles that screw onto the DEF orifice? Are they reusable? IOW can you refill one of these fancy bottles so that there was no reasonable chance of overfilling the tanks or spilling any DEF under the hood?

Funf Dreisig