First fluid change on new to me c4s

[dakar]

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?

[White987S]

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.

[White987S]

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.

[dakar]

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

[White987S]

Dakar, did you try Sunset Porsche for the crush washers? Call Phil Coy at 503-641-8600 or philcoy@sunsetimports.com. Great guy. And a site sponsor.