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I hope I don't make this sound too daunting, but if your compressor seized, there will be contamination in the system. Possibly not much but there is some and it merits some attention. First I'm not sure if your system has the older variable orifice expansion valve with the receiver-dryer before the expansion valve or the fixed orifice with the accumulator(dryer) on the low side after the evaporator. If the dryer is on the high press. side it will have the contamination in it. If it is on the low side then possibly the contamination was caught in the screen before the expansion valve or the screen attached to the orifice. Did the kit come with a new dryer. If so you really just need to clean out the condensor and the screen(s) in the system. There are flushes(with all sorts of arguments pro and con) or you could just use compressed air and hope for the best. I would have thought that the compressor had a drain and a fill plug to add the oil. You should never put oil in through the suction and discharge ports. If you can't get it all in then put it in the dryer. Meanwhile if you have the system open all this while then there are other problems being created also. Esther oils are not as bad as PAG but it is hydroscopic and will absorb moisture rapidly if left open. One of the best oils to use (but expensive) is BG Products Frigi-Quiet. Someone mentioned pressures. Supposedly Freeze-12 has lower pressure but even thought it's moistly R-134, It requires certification to buy it. Have Fun
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