John,

Here's one that uses the Freon to push oil into the system.

https://www.amazon.com/FJC-2734-R134A-Oil-Injector/dp/B000HHUO98

GregM

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of John Rodgers
Sent: Thursday, August 04, 2016 9:52 AM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: Whining AC compressor

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
>