How much pag oil goes into a new ac compressor.

Did you replace the orifice tube?

Here is the rule, you pour all the oil out of the old compressor and measure it, then you add that much back plus about 2 ounces. The oil should be virtually clear if it is dark or black flush the AC system with denatured alcohol and compressed air.

there will be no need to put oil in an ac compressor
new compressors already have oil in them and old units have the oil through out the ac system that comes back in with the gas.

only if you have installed a new compressor if its just an evac and recharge then the PAG oil is still in the system...............

48 oz if dual A/C , 29 oz if front A/C only

unless you are changing a new compressor you should not have to add any oil in there. Do not put oil since the compressor already has enough oil in it. If you put oil in there and it already has oil, the AC system will not function properly because it has too much oil. How much oil to put in there is determined how much is already in there.

new compressor should have 5 ounces. dont overcharge and make sure the compressor did not already have oil in it.

PAG oil is used only in the ac compressor

5.1 oz. and use PAG oil ONLY!!! Get at the local parts house. Be sure to replace receiver dryer when replacing AC compressor. Vacuum system, add oil, charge with R134. WARNING: Be sure to connect to low side!!! Hard to mess up. Low side is the small port, high side is large port.

Do you have the old compessor? Drain out what is in there and use that amount as a guide + 1 oz. There is no ratio per se. As long as you are close without being crazy low (none) or crazy high (over flowing), you're good.