Hi John,

From a layman’s perspective having too much oil can do a lot of damage as well…If you do suspect that you’re low, there are cans that contain a bit of refrigerant AND an oil charge…would be up to you on how much to put in and not overcharge your system…

The noise that I’d be more worried about would be the hammering sound of the compressor coming apart :-D ask me how I know- just replaced one on a mini van with 273K miles on it…thankfully it didn’t completely come unglued and pollute the whole system...

I just did a google for “PAG oil charge” and came up with stuff @ Advance Auto Parts…among others…

Dave
> On Aug 4, 2016, at 10:52 AM, John Rodgers <jrodgers113@GMAIL.COM> wrote:
> 
> Is there a way to add more PAG oil to the system without venting and
> draining the whole thing? I'd like to get through this summer heat if
> possible and put a new compressor on for next year. Got about a month to
> six weeks to go.
> 
> John
> 
> On Aug 4, 2016 01:52, "Dennis Haynes" <d23haynes57@hotmail.com> wrote:
> 
>> It is possible your recent recharge did not include the correct type or
>> among of oil to go with the refrigerant charge. Sometimes these compressors
>> do get noisy and they sometimes run this way for years.  Sometimes they
>> also self destruct and fill the system with pieces.
>> 
>> Dennis,
>> From my phone.
>> ------------------------------
>> From: John Rodgers <jrodgers113@GMAIL.COM>
>> Sent: ‎8/‎3/‎2016 9:13 PM
>> To: vanagon@GERRY.VANAGON.COM
>> Subject: Whining AC compressor
>> 
>> This on my '88 GL. Bloody ho in Alabama just now and badly needed. I
>> recently serviced the system and it's been fine for about two weeks. Then
>> started with the whine that has gotten progressively louder. I hate it but
>> will have to run with it turned of. No experience with this. Anyone have
>> any ideas. Really hate the idea of having to get a new compressor just now.
>> Pricey!
>> 
>> Thanks.
>> 
>> John
>>