I tried by hand but for the life of me i couldnt get it off, and i have a very bad habit of breaking things that **** me off, especially if tehy are plastic and brittle and vital to the workings of the vehicle hahaha.

alright, ill spray it down with some break clean see if its sludge or somethin suckin the cap on, ottherwise i guess ill just get used to it haha... funnel worked fine

 

it happend to me too but somehow it fixed it's self?????? I love my D2...