In the morning when I start my car up and pull it out of the driveway, I have a hard time shifting for the first couple of minutes. The gearbox feels very notchy and doesn't like to go into to gear. I am in Ca and the coldest its been here so far is around 39 degrees, so its not too bad. After the car warms up, everything is fine. What could be the problem, or is this normal?

 

I don't notice a great deal difference in shifting between hot and cold.

Mark

 

My car shifts kinda rough when the tranny is cold. When it warms up there is no problem. Don't know what causes it..

 

These cars are made for the cold temps. Could be low tranny fluid.

 

takes a little while for thre fluid to get up to temperature

 

My 993 really is slow and notchy when cold to shift... Stick.

My 996TT is no problem at all...Tiptronic.

 

i was gonna say, just let it warm up a bit.

 

Normal

 

i had the same problem with my 993 and i found a solution. A lot of people put Mobil 75w-90 Gear Lube thinking that is the factory spec. There is only one place in the USA that i'm able to find the real formulated for Porsche Mobil Delvac 75W-90 gear lube (dealer aside).

Prior to using this specific Mobil Delvac product, i tried Redline, Swepco, regular Mobil 1 75W-90. Each of them had slightly different shifting characteristics - but none of them nearly as good as Mobil Delvac 75W-90 gear lube. It is also my understanding that the dealer sells the correct stuff for about $100/quart (talk about black gold).

In any case, this is the only place i found in the US and it is $42.50/gallon. Try this and report back. It transformed my 993!

http://www.lufteknic.com/Merchant2/m...ode=lubricants

Good Luck!

Cheers,
Boris

 

Thanks for the tip, I and my buddies will be ordering.

 

im actually thinking about moving over to the redline stuff as well this wednesday. ill let you know how that works out.

 

Thanks! I have heard talk of lack of shear qualities with the Redline.
Some racers combine some product "Shock Proof"? with it to improve
the shear strength.

 

well i thought about using Royal Purple but I had a box of Redline in the garage...

 

Wow I'm actually glad I saw this thread. I also thought that something was wrong with my tranny. I'll also probably give the tranny oil a trry to see if that helps.

 

yep as I stated above, I highly recommend the Mobil Delvac. I am also one that is highly skeptical of additives/lubes/oils.... but this stuff really works! i was told that this delvac stuff was designed in concert with the porsche engineers and formulated specific for prosche and from the results i believe it!

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Now my own conclusion (I always try and separate out my opinions from what is more concerete):

Here is what I suspect is the case: porsche gearboxes have a significant amount of "slop" in them. In part, porsche covers up the slop with the dual mass flywheel and likewise when you go to a 964RS type of single lighterweight flywheel you hear the gearbox rumble, quite a bit more. I've also noticed a wide variance between different porsches (of the same model) and some will make a racket with a single mass flywheel and others are pretty quite. My 993 had a louder tranny and it made a big difference in it. If you've never had a problem with syncro's, well count yourselves lucky as one of those that got a tighter gearbox. But if you do, redline, mobil, swepco didn't help me, but this stuff did. my 2 cents...