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)
Sign in to follow this  
dakar

First fluid change on new to me c4s

Recommended Posts

I read the DIY section. Thank you for all the information. Where can I source the shell 75w90? Is there a specific one I need to seek that is compatible with our cars?

I will do all fluids including ps, brake, coolant, transaxle and front diff. Plugs and serp belt. Do I need crush washers for transaxle and front diff?

Share this post


Link to post
Share on other sites

Great plan. This will "zero out" your maintenance. Always a smart move on a newly aquired used Porsche.

Make sure you use OEM coolant and distilled water.

Yes, you need the crush washers for the gear oil change.

I'd recommend you use Mobil Delvac 75W90. Buy 2 gallons. You'll use about 5 quarts. Good place to purchase is Lufteknic:

http://www.lufteknic.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=Mobil75-90delvac

If you're really fanatical, like me, send you engine oil and gear lube out to Blackstone Labs, and start doing Used Oil Analysis. This first test will serve as your baseline.

Share this post


Link to post
Share on other sites

Oh yeah, make sure you loosen the "fill" plugs before you drain the gear oil. You don't want to be stranded with a fully drained tranny. Just a tip.

Share this post


Link to post
Share on other sites

Great plan. This will "zero out" your maintenance. Always a smart move on a newly aquired used Porsche.

Make sure you use OEM coolant and distilled water.

Yes, you need the crush washers for the gear oil change.

I'd recommend you use Mobil Delvac 75W90. Buy 2 gallons. You'll use about 5 quarts. Good place to purchase is Lufteknic:

http://www.lufteknic...obil75-90delvac

If you're really fanatical, like me, send you engine oil and gear lube out to Blackstone Labs, and start doing Used Oil Analysis. This first test will serve as your baseline.

thank you. I have not been able to find crush washers for transaxle and front diff. I checked pelican, autohaus and bimmerparts. Do you have a source for those? Vendors mentioned above have oil drain plug and coolant drain washers. I ordered those two.

Also thank you on the loosen fill tip. I learned that the hard way on my first performance car. Thanks for the reminder

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

×
×
  • 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.