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Recommended transaxle fluid?

 
Old 07-25-2016, 05:00 PM
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cgfen
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Default Recommended transaxle fluid?

My 3 is due for a fluid change.

What are your recommendations?
  • Stock P car fluid?
  • Redline shockproof / no shock?
  • Mobile 1 Delvac? (did not like this in my 993 with LSD)?
  • Other?

Car is 98% street / 2% DE.
Based in So Cal, so it is WARM here.

Thanks

Ps. looks like fun to re-fill with the cooler sitting right in front of the fill port.................
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Last edited by cgfen; 07-25-2016 at 08:49 PM.
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Old 07-25-2016, 05:05 PM
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rbahr
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I thought that the Mobile 1 Delvac was the recommended Porsche fill?

In any case this is what I just used, been afraid to try anything else...

Yep - the refill is tough, make sure you have the correct plug, can easily become a $4k fill


Ray
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Old 07-25-2016, 08:06 PM
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993GT
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I'm a Delvac user, but have used Castrol Syntec 75w90 in other modern Pcars with great success
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Old 07-26-2016, 02:36 AM
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M1 Delvac, same thing Copans said to use after rebuild with LSD.
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Old 07-26-2016, 10:34 AM
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Fill is easy once you get the bolt off. I bought a pressurized pump and it was a breeze. Others had similar experiences and recounted them here. https://rennlist.com/forums/996-gt2-...e-weekend.html

Good luck!

-td
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Old 07-26-2016, 11:06 AM
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with a pump of some sort, it is a very quick and easy job...let's say it adds 10minutes to an engine oil change or similar (ie. car already on hoist/jacked-up)
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Old 07-26-2016, 11:40 AM
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Thanks for the feedback and the linky.

Cheers

Craig
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Old 07-26-2016, 01:23 PM
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And we need to change it every 90 days, right? (j/k

Last edited by porschedog; 07-27-2016 at 06:07 PM.
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Old 07-26-2016, 05:47 PM
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When TLG rebuilt my LSD with the Guard plates, they used Redline 75/90 NS and and then added Redline LSD modifier

Haven't heard any noises from the diff - car drives well
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Old 07-28-2016, 01:16 PM
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I've been told that any modifier reduces the locking factor so it will not chatter. Less locking factor so the customer doesn't complain about any noise.
Do you think the race teams use it?
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Old 07-28-2016, 07:57 PM
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I tried Redline but had very slight crunch from 3rd to 4th but only during redline shifts. I replace with porsche oem for gt3 and it was gone.

Suggest you just buy porsche oem for gt3.

This is on my 6Gt3 mark 1. Hope this helps.
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Old 07-29-2016, 12:16 PM
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Originally Posted by 0396 View Post
I've been told that any modifier reduces the locking factor so it will not chatter. Less locking factor so the customer doesn't complain about any noise.
Do you think the race teams use it?
interesting
let's discuss
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Old 07-29-2016, 03:59 PM
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Originally Posted by 0396 View Post
I've been told that any modifier reduces the locking factor so it will not chatter. Less locking factor so the customer doesn't complain about any noise.
Do you think the race teams use it?
TLG (Marco) told me that he uses the same fluid combo in his racecars...just saying - obviously take that with a grain of salt.

My car isn't a racecar...
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Old 07-29-2016, 04:02 PM
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Originally Posted by jlasuncion View Post
I tried Redline but had very slight crunch from 3rd to 4th but only during redline shifts. I replace with porsche oem for gt3 and it was gone.

Suggest you just buy porsche oem for gt3.

This is on my 6Gt3 mark 1. Hope this helps.
What is the OEM fluid in the Philippines? That could be pretty different fluid than what we can get in the US...
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Old 07-30-2016, 11:56 AM
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Originally Posted by cgfen View Post
interesting
let's discuss
If you live on Vista, you have a Porsche trans expert near you. To my knowledge, his name is Jon Bun ( pretty sure that's his name ) go to guy that rebuilds 935 / 901 / 915 and the like of Porsche trans. As some have suggested, just use the factory fill. When I had the factory LSD rebuilt with Guard internals, I just follow the recommendation of factory fill too.

Last edited by 0396; 08-05-2016 at 03:49 AM.
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