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Old 04-11-2016, 04:41 PM   #1
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Transmission Fluid: Mobil Delvac or Porsche factory?

Hi,
I know how we all hate oil debates but I just want to ask for some opinions.
I will be changing my transmission oil next month, after some long research I have a problem deciding if I should use:

Mobil Delvac 75W-90
Gear oil - Mobil Delvac 75W-90 (1 gallon) – Lufteknic

or the factory:
ORMD-TRANS OIL 1LTR - Porsche (999-917-546-00)

It is for a 2003 Boxster S.
Anyone using Delvac on the their Boxster S?

Thanks

Last edited by Shred; 04-11-2016 at 05:09 PM. Reason: spellings
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Old 04-11-2016, 04:52 PM   #2
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I always use the factory gear oil.
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Old 04-11-2016, 05:29 PM   #3
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Stick with the Porsche transmission fluid. I know it's expensive, but it's only every 90k miles. People tend to poor shifting with non-OEM fluid.

More info here:
http://986forum.com/forums/general-discussions/30441-manual-transmission-fluid-best-brands.html
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Last edited by rick3000; 04-11-2016 at 05:31 PM.
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