A/C recharge, what type of oil is best for A/C and what type of refrigerant?

Tiny
HIR20
  • MEMBER
  • 2010 TOYOTA PRIUS
  • 1.8L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 130,000 MILES
I changed the condenser in my car. Now I need to recharge the A/C. What type of oil is best for A/C? What type of refrigerant?
Thursday, February 2nd, 2023 AT 2:57 PM

3 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 50,348 POSTS
Sure, here is the information you have requested, and I have included a video of how to vacuum down and recharge the system.

https://youtu.be/4EqdrBVb0sY

Compressor oil - ND-OIL 11 or equivalent

Charge with refrigerant HFC-134a (R134a).

Here are instructions on how to charge the system in the images below. Please let us know if you need anything else to get the problem fixed.
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Friday, February 3rd, 2023 AT 11:08 AM
Tiny
HIR20
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  • 2 POSTS
Do you know how to put oil in the compressor and then the whole system? How much oil do I need to put in? There is oil in system already and do not want to overfill

I changed the condenser, so I do not expect any R134a, so will go with car recommendation, unless you know differently.
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Friday, February 3rd, 2023 AT 11:13 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 50,348 POSTS
When you removed the condenser how much oil came out? This is how you judge how much gets put back in. You can just pour the oil in the high side hose from the compressor to the condenser. If you are not sure add 1 ounce of oil and you should be okay. The majority of the compressor oil is inside the compressor FYI. Also, when the system was part did the inside of the system look dry? If so add 2 ounces.
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Friday, February 3rd, 2023 AT 1:48 PM

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