Disclaimer: I'm not an AC professional. But my advice is free, and worth every penny. 52F is pretty low temperature to try any AC diagnosis. But 28psi is pretty low. I'd get a real service gauge kit if you want to continue diagnosing by yourself. And I'd run away from what you purchased if that can ...

What does a good compressor feel like? I'm not a professional, have installed about a dozen brand-new compressors is different vehicles. The center drive plate should turn with a wrench with some resistance but not forcing it. I'd rather just buy a new clutch but I don't want to buy a clutch and th...

Dealer wants $13 for just one high side cap. See these on Ebay for under $1. Any idea which one? Get cap from the dealer for $13. You have a relatively new vehicle (2020) and you're getting cheap over this??? (My newest vehicle is a 2004 Frontier !) What's really sad is that there are multiple caps...

I'm not an AC professional.

But I use 525 mineral oil with the R-12 in my 1988 Mazda truck. I use a compressor I purchased brand-new in 2014 from Tim, board sponsor. ackits.com

Tim wrote: ↑Sun Oct 15, 2023 8:36 am Suggest a trusted brand that will more than fulfill your needs.

43-MT1721

THIS.

bohica2xo wrote: ↑Fri Oct 13, 2023 6:41 pm For reference I believe Cusser is using a lab pump like a Welch Duo Seal.

Yes. I have a Cenco Hyvac2, capacity is listed as 1 qt. oil.

3b auto wrote: ↑Thu Oct 12, 2023 8:44 am Thanks that was helpful. I have no way to test whatever oil it shipped with.
Maybe thats why folks change it out to ensure the proper PAG

Not sure if mineral oil is still used in modern day R134A ?

No - mineral oil is not used with R134a, not compatible.

My replacement compressor comes loaded with oil, some say drain and refill but Im not sure why? I'm not an AC professional. 1. The oil in the replacement compressor might be of the incorrect type. In the early 2000s I once purchased a replacement compressor (from this board's sponsor) for my 1988 M...

I'm not an AC professional.

Using my home-made recovery system (which uses dry ice and alcohol), I have recovered and re-used both R-12 and R134a.