Turn the filler neck with your hand counterclockwise about half a turn. I believe there is a rubber O ring. So you may have to really twist it.

There is no rubber O-ring on the filler neck, but you will have to give it a good turn. It may help to put the oil cap back on, and then try and turn everything at once. Tools are not and should not be used. Just pretend it'* a sticky doorknob.

Once you get it off once, it'* a lot easier from then on.

I tried it cold,will prob come off easier warmed up...got little oil smell I have to check on,gunk the oil off to see where the smell is coming from,supercharger front seal has some small leakage which is normal i was told. al

100% believable and expected for an L27 (Series 1 3800) engine. When I got my engine swap done at 217k miles, I did a compression test, and all 6 cylinders came within 2 PSI of 188 PSI. Those are some extremely tight tolerances and very impressive for an engine with that kind of mileage. If I needed a long route commuter car, I would get another L27 in a heartbeat.

yeah im pretty proud lol thank you