Oil Funnel - Threaded for Subaru (M42xP4.5)

thingiverse

I made a custom-made funnel that threads seamlessly into the filler neck on my EJ25 engine (MY 1998-2002), which may also fit other years. The threading is a precise M42xP4.5, so I recommend checking your vehicle to ensure it matches. This clever design makes oil changes significantly easier and cleaner. It's worth noting that an oil-resistant filament should be used at all times. Any material that breaks down in the oil will contaminate your engine, so please confirm your choice before use! I want to emphasize that I won't be held responsible for any negligence on this matter. Updated 8/24/2017 I recently downsized the funnel and tightened up the threads. The original larger size was unnecessary. I'll print tomorrow and report if the new design fits perfectly. Update! 8/27/2017 After experiencing some printer issues, I finally managed to get the print done. It works great! I printed it without any scale adjustments, and it threaded flawlessly onto the oil filler neck! However, I do need to clean up the stringing.