How do I add PAG oil to my AC system?

Just attach your pump to the low pressure port, remove the schrader valve on the high pressure port, turn on the pump and let the air suction from the HP port suck in the oil via a rubber tube between the port and oil bottle. If your ac system has been suffering from a leak, some PAG oil is lost and must be replenished.

How to inject PAG oil into a car?

Introduction: Injecting Pag Oil Into a Car’s Air Conditioning System. Here is how I injected pag 46 oil into the pressurized system of my wife’s car AC. Not much is needed but a very special tool is required for this job. Step 1: THE ROBINAIR 16256 OIL INJECTOR. Simple enough device that allows injection of oil into a fully pressurized system.

What’s the PAG number on an AC compressor?

Each PAG oil type has a number such as PAG150 or PAG VC-46. This number refers to the PAG viscosity, similar to a number like 10W30 indicates the viscosity of a regular engine oil. You have to look into the owner’s manual to find out the correct PAG oil viscosity for the AC’s compressor.

Do you need to add oil to AC unit?

The compressor is the AC unit component that needs adequate oil to run smoothly. Normally, there is no need to add oil to your vehicle’s existing AC system, unless you have changed the compressor or there is a leak, letting oil dripping from the system. A compressor needs a sufficient amount of oil for lubrication.

When to add PAG oil to AC system?

Here is the amount of PAG oil that different AC components require for their smooth operation: Flushing the entire system is recommended before adding oil or refrigerant. When you are replacing a part, such as a compressor or an accumulator, you should always add the oil that has been lost during the replacement.

How to add oil to an AC system?

Again, turn that compressor shaft by hand for 10-20 more times to be fully sure the compressor won’t hydrolock (better be safe than sorry). After you’re done let the system rest for 10 minutes and then start the engine, be sure it’s in idle and then engage the AC compressor and let it run for 5 minutes keeping the engine in idle.

Is it OK to add refrigerant to an AC system?

The thing is, most replacement components, such as compressors, often come with the prescribed amount of oil already in the part. If you add oil on top of this, you might saturate the system and it won’t work as well. In addition, it’s not a good idea to mix R134a refrigerant oil with R12 oil.

How do I add PAG oil to my AC system?