Quote:
Originally Posted by Kuhlrover
Why do you want to add more oil to the system? Did some leak out and you need to replace it? Unless you have proof that you have lost oil, then once again, leave it alone. Too much oil is a bad thing.
|
I'll check out the temperature chart, thanks. And I agree that too much oil is bad, but since the oil is dissolved in the refrigerant, when the refrigerant leaks out so too does the oil.
I think it's pretty safe to assume that until I added a can a couple of days ago most of the refrigerant had escaped. Now I don't believe that all of the oil escaped as well, but the system as a whole must be low on oil.
Yesterday I added 1/2 a can (to the whole can the previous day) to bring to the low-side pressure up to 35 again and there's been a noticeable difference. We're almost up to having ice cubes fall out of the dash.
I'm crossing my fingers it holds for the rest of the summer.
But what is the official procedure for charging a system? Low-side pressure 25 - 45 psi at 1500 rpms? 2000 rpms? idle?