replaced with rebuilt from aircondex - old one didn't lose oil. This one is losing oil - where is it going is my question. Just installed today and have had to put in an extra quart to keep it going. Old one had problem with oil pressure. 404a system, system temps are okay - system in place for 5 years, I'm at a loss here. Pressures are good, amps are good, syntronic not tripping. Freezing properly, but the oil keeps going down without any visible signs of leaks.