I just bought this tank brand new from Amazon. Well I received it today and I wanted to hurry up and paint it...But the damn thing is greasy! I bought a stock size tank years ago from Spectra and it didn’t show up pre-greased. You can also feel and see grease on the inside. Is this a rust preventing coating that I should expect on another tank if I return this one? Should I just clean the damn thing? What the heck! Supposedly it’s a brand new part why should I have to do this! Darn thing has several dents. Even came with 4 pry marks!