WTF is happening... That's what I printed yesterday, since most of my oil changes are coming up next month. My own take on the Michael Pro system. One for my F150, and one for the TJ. The funnel is in red, and the bottom adapter tube is in "transparent," both PETG. Transparent is about as see-through as a nun's habit. For the F150, my dumb ass mounted the winch solenoid box on the side of the battery so I can barely fit a regular funnel into the fill hole. So I've got a small angled piece at the bottom that threads in first.