You could also always use the diesel adapter that comes with the car, if you dont mind geting it dirty. I had this issue as well and my trunk was loaded with groceries so i couldnt get the adapter out..but it was a fun adventure, especially when we heard a click so it sounded like the restrictor got out of the way but it didnt so all the diesel just sprayed right back at us lol.

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"Time flies like an arrow. Fruit flies like a banana."