Ok so last year I bought a new acdelco compressor from highway stars and installed it, had ac system evacuated and charged. A/C worked flawless last summer. Put car away in December for winter hibernation. Got her out last week she ran perfect. I put ac on and it was still blowing cold(awesome) problem is I noticed about 10 to 15 drops of oil under ac compressor. It looks like it is coming out the front seal. Do you guys think the seal just need to swell up or is compressor junk?