Gear Oil Change
03-02-2014, 03:13 PM
#16
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That is not true at all.... We use it in all our customer cars. No one has ever experienced very hard shifting. Especially here in CNY were you have Extreme cold temps both in the early spring and late fall driving season.
If you check with many of the indie shops they are using 1 of 3 options.
OEM replacement: Mobil
DE Track/DD: Motul
Heavy Track: Redline (we have a special mix ratio we use for track cars)
At the end of it all it really is how much you want to spend and how often you change the fluid.
If you car is only sees a fluid change every 100k... then the Mobile option best suites the situation.
If you check with many of the indie shops they are using 1 of 3 options.
OEM replacement: Mobil
DE Track/DD: Motul
Heavy Track: Redline (we have a special mix ratio we use for track cars)
At the end of it all it really is how much you want to spend and how often you change the fluid.
If you car is only sees a fluid change every 100k... then the Mobile option best suites the situation.
I went to my dealer and he gave me a great discount for being PCA... approx $30/qt for OEM (need 3 Qts). Shifting returned to normal and I will stick with OEM for that price.
Good luck!
03-03-2014, 10:58 AM
#20
just went back to OEM gear oil after trying a few options (Castrol 75W90, Mobil 75W90, Mobil 75W140).
OEM oil definitely shifts better when the transmission is cold.
My dealer had it in OEM packaging of 1 liter (with Porsche P/N), $35/l at shop price.
That's crazy expensive for some stupid oil, but if I had to do it again I would stay with Porsche OEM.
OEM oil definitely shifts better when the transmission is cold.
My dealer had it in OEM packaging of 1 liter (with Porsche P/N), $35/l at shop price.
That's crazy expensive for some stupid oil, but if I had to do it again I would stay with Porsche OEM.
03-04-2014, 08:12 AM
#24
Was considering this too as routine maintenance as I've hit 95k. Sounds like an easy enough job, but is it necessary to put all four corners on jack stands to do it? I was just hoping to get a creeper under there or back the rear end up on ramps, loosen the bolts, and drain/refill on a level surface.
03-04-2014, 10:47 AM
#27
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Was considering this too as routine maintenance as I've hit 95k. Sounds like an easy enough job, but is it necessary to put all four corners on jack stands to do it? I was just hoping to get a creeper under there or back the rear end up on ramps, loosen the bolts, and drain/refill on a level surface.
03-04-2014, 11:28 AM
#29
Rennlist Member
My car had really notchy shifting when I bought it (especially 1-2 shifts when cold), so I drained the fluid and I'm currently running some Lucas 75w140 for a few weeks to "flush" it out. The shifting was greatly improved with the Lucas fluid and the transmission is noticeably quieter, though the notchiness is still present when cold. I'll be going back to the OEM fluid when I have an opportunity.