Jump to content

Welcome to RennTech.org Community, Guest

There are many great features available to you once you register at RennTech.org
You are free to view posts here, but you must log in to reply to existing posts, or to start your own new topic. Like most online communities, there are costs involved to maintain a site like this - so we encourage our members to donate. All donations go to the costs operating and maintaining this site. We prefer that guests take part in our community and we offer a lot in return to those willing to join our corner of the Porsche world. This site is 99 percent member supported (less than 1 percent comes from advertising) - so please consider an annual donation to keep this site running.

Here are some of the features available - once you register at RennTech.org

  • View Classified Ads
  • DIY Tutorials
  • Porsche TSB Listings (limited)
  • VIN Decoder
  • Special Offers
  • OBD II P-Codes
  • Paint Codes
  • Registry
  • Videos System
  • View Reviews
  • and get rid of this welcome message

It takes just a few minutes to register, and it's FREE

Contributing Members also get these additional benefits:
(you become a Contributing Member by donating money to the operation of this site)

  • No ads - advertisements are removed
  • Access the Contributors Only Forum
  • Contributing Members Only Downloads
  • Send attachments with PMs
  • All image/file storage limits are substantially increased for all Contributing Members
  • Option Codes Lookup
  • VIN Option Lookups (limited)

1979 - 1985 928 AC system OIL TYPE - PAG or ESTER

Bo Sandulescu
 Share

Recommended Posts

Bo Sandulescu Member

Bo Sandulescu

Posted
Posted

I am upgrading my long dead AC system to R134 through the Griffiths upgrade compressor, condensor, dryer. 

 

The question is what was the original oil used in the system? 

 

My worry is mixed reports about remnant oil in the evaporator located underneath the dash.  Some say mixing oil types may turn to varnish ... if this is true, it could mean the end of the evaporator and maybe the rest of the system. 

 

Has anyone upgraded their system?

  • Moderators
JFP in PA Member

JFP in PA

Posted
  • Moderators
Posted

I would suggest contacting the compressor manufacturer and ask their advice as most of the PAG oil function  is in protecting the compressor components.

 

You can also purchase an AC flushing kit, which uses a solvent run thru the system to remove oil and any metallic debris from the system, and leave the entire system clean as it was new.

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.