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Old 02-05-2009, 12:46 AM   #1
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Consensus on tranny/diff fluid?

Are there some non-Porsche transaxle fluids that will improve shifting feel while still meeting Porsche specs? Redline/ Royal Purple/Mobil One? Anyone have any good or bad experiences with any of these (or other) brands?
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Pete

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Old 02-05-2009, 02:43 AM   #2
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I used the redline cocktail (2qts 75w-90 + 1 qt lightweight shock proof gear oil) and I noticed an improvement, particularly with the "popping out of 2nd" problem. Change was made at 90,000, currently I have 114,000. I mixed the fluid, pumped it in, and there was a bit left over.
Also, I changed the Dif fluid in my wife's Infiniti G35 for Royal Purple 75W-90, then used a RP product in my 1990 Ford Ranger 4x4 transmission and transfer case. Both vehicles seem smoother.

Last edited by j.fro; 02-05-2009 at 02:46 AM.
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Old 02-05-2009, 06:07 AM   #3
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I would recommend Swepco expecially for cars with power adders or tracked. Worked very well my formula car to prevent R&P wear, Redline especially the lightweight showed R&P wear fairly soon, Swepco none.

Found this price with a quick google search: http://www.********************************************************************.com/product_p/swepco-201.htm

And pump here: http://www.pelicanparts.com/catalog/shopcart/911M/POR_911M_UPrc91_pg26.htm

I'll be changing my 22K mile stock fluid to Swepco before Spring. ~ Chris
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Old 02-05-2009, 07:30 AM   #4
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I would go with the Redline. Great products throughout the line.


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