Common questions

When do I need to add AC compressor oil?

When do I need to add AC compressor oil?

If the leak is high in your system, it could be very little, but if the leak is low or on the low pressure side of the system it could be a significant amount of oil. Another thing to consider is what type of AC compressor oil your vehicle requires.

Is it OK to use mineral oil in an A / C compressor?

Using the wrong oil may allow current to short circuit back through the A/C compressor, creating a shock hazard. Mineral oil should only be used in older R-12 A/C compressors because R-12 will not mix with R-134 refrigerant.

Where can I get Red Angel AC compressor oil?

Once you’ve got the correct type of oil, you can use the Red Angel Oil Injector to add the AC compressor oil to your system. You can find the Red Angel Oil Injector and other Red Angel AC products at any of our partnering auto parts stores like: AutoZone. Advance Auto Parts.

Do you have to use PAG oil for an A / C compressor?

“Universal” A/C compressor oilsare often PAO-based and are not the same viscosity as the PAG oil recommended for a specific type of compressor. This can lead to poor lubrication and premature compressor failure. Newer vehicles with R-1234yf A/C systems require a special 1234yf compressor oilspecified by the vehicle manufacturer.

What kind of oil do I need for an AC compressor?

You can find those guidelines and other AC compressor oil information by reading this article about A/C Compressor PAG Oil Once you’ve got the correct type of oil, you can use the Red Angel Oil Injector to add the AC compressor oil to your system.

Once you’ve got the correct type of oil, you can use the Red Angel Oil Injector to add the AC compressor oil to your system. You can find the Red Angel Oil Injector and other Red Angel AC products at any of our partnering auto parts stores like: AutoZone. Advance Auto Parts.

Can you use mineral Oi L in an A / C compressor?

Mineral oi l should only be used in older R-12 A/C compressors because R-12 will not mix with R-134 refrigerant. “Universal” A/C compressor oils are often PAO-based and are not the same viscosity as the PAG oil recommended for a specific type of compressor.

What happens if you add too much oil to an A / C compressor?

Too much oil can hurt cooling performance. The total amount of oil added to compensate for parts that have been replaced should NOT exceed the total oil capacity of the system. If you don’t know what the total oil capacity is, check the underhood A/C service decal or look up the information in the OEM service literature.

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Ruth Doyle