I decided to change the oil about 1500 miles into the change after having added some seafoam to the mix for 25 miles or so. I got underneath it and decided I want to drop the engine oil pan. I have all of the bolts and nuts off but, its stuck! I have a feeling it is the seal and I am in for lots of prying and having to put a new sealer on it. I am not sure what to do, and any help would be greatly appreciated.