Air Conditioning oil

[novadude]

Not sure if this is the right Forum or not.

Would a 1995 Ford (Mustang GT) use PAG or ester oil in the A/C system?

 

[VaderSS]

PAG is the OEM oil. Ester is used primarily in R-12 retrofits, because it is more stable in the presense of trace amouts of mineral oil.

 

[MolaKule]

My information says that esters such as PE and TMP ester are used with most of the newer refrigerants since they less hygroscopic.

Don't know about Ford, they do wierd things.