Transmission lube
#16
Burning Brakes
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i put royal purple in mine. not sure of any difference, but the car does run about as well as i could expect it to. went with that bc a friend who is into saleen mustangs said a back to back dyno test with a royal purple switch yielded something like 10-20 whp
#17
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I use Delvac and haven't had any issues. I don't drive the 964 in the winter but have driven it in 20-30F weather. I always shift slowly until the car is warmed-up.
#18
Nordschleife Master
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We use the Delvac in the race cars with a change every 10-15hrs. My personal street car has 160k and has had only a few changes of the gearbox oil with Delvac ever since I bought the car and I have no issues shifting, even in the clold NY winter.
#19
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Last edited by HalV; 08-27-2013 at 11:59 AM.
#21
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Originally Posted by Geoffrey
My personal street car has 160k and has had only a few changes of the gearbox oil with Delvac ever since I bought the car and I have no issues shifting, even in the clold NY winter.
#22
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Both SWEPCO & Red Line offer excellent gear oil for Porsche manual transmissions:
Red Line 75W90 NS
SWEPCO 201
Red Line 75W90 NS
SWEPCO 201
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#23
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The Red Line 75W90 NS is used in applications that do not have a clutch type limited slip. If you do have a clutch type limited slip, you'll want the 75W90 as it has a friction modifier to prevent LS "chatter"
http://www.paragon-products.com/Redl...transfluid.htm
http://www.paragon-products.com/Redl...transfluid.htm
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#24
Burning Brakes
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I need to change the type of fluid I've been using.... I've been using standard Mobil 1 75W-90 Gear Lube (not Delvac). After 120k miles (which a fair bit of track time mixed in), my 2nd to 3rd brass syncro is quite troublesome...
Is there info that says Delvac is easy on LSD and tough on syncros?
Is there info that says Delvac is easy on LSD and tough on syncros?
#25
Race Director
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I think we started narrowing down the differences that 964s were experiencing with Delvac to the steel synchros that you guys are all running versus brass in the normal transmissions on the street cars? And all of those problems that we were experiencing went away once we started using the more expensive factory Mobil PTX fill?
Any internal work on the transmission?
Any internal work on the transmission?
#26
Rennlist Member
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I need to change the type of fluid I've been using.... I've been using standard Mobil 1 75W-90 Gear Lube (not Delvac). After 120k miles (which a fair bit of track time mixed in), my 2nd to 3rd brass syncro is quite troublesome...
Is there info that says Delvac is easy on LSD and tough on syncros?
Is there info that says Delvac is easy on LSD and tough on syncros?
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#27
Burning Brakes
#29
Burning Brakes
#30
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There are enough 964 & 993 owners that have had problems with SHC that were only resolved when switching to the stupid expensive dealer lube and alternatives. People can benefit from our $$$ mistakes or not.