Here’s my dumb question. Are oil filler caps the same on Kia engines? I see a red aluminum cap for sale one one of the Stinger stores, not Sal’s, for about $80. I see one on Ebay that’s also red aluminum for under $20. Both say they fit the Kia 3.3L. Am I opening a can of worms or are all caps created equal? Any advice is appreciated, including don’t mess with it.