Nexus 5 - How to downgrade from Android 5.0 Lollipop to Android 4.4.4 KitKat.
The cost to replace Freon varies by the amount needed since it is charged by the pound. The typical charge starts with an $89 service call to visit the home and inspect your AC system. From there, the cost to add Freon is $68 for the first pound and $58 for each pound thereafter.
Step 6 - Adding Oil. The last step in replacing the Freon in your refrigerator is to add a few tablespoons of PAG oil. This oil helps lubricate the compressor, which allows the refrigerant to easily pass through the system.