100plus

Hi guys,

Did a search on transmission oil but not much on it. My car will be going in for a service soon and was thinking of changing transmission oil at the same time.

Any tips and/or suggestions on what oil to use? Is it ok if 2 different brands are mixed? Inputs about this would be very much apreciated.

Are there any signs before a tranny gives way?

Cheers

Ubermensch

Personally, I just went with stock. If it's not broke, I don't fix it.

-Shawn

ivangene

swepco 201 RED - I forget if 210 or 201 is red, I run the blue in the 86'

chsu74

I have replaced tranny oil with "Royal Purple" same grade but it just sucked and went back to OEM after 1 year. OEM is the best. I think its a Mobile.

bgiere

210 is Red, 201 is Blue...probably not ideal for this trans though.

Macster

What Shawn said.

OEM.

I've had the 5-speed fluid in my 02 Boxster changed now I forget how many times and each time it has been at a Porsche dealership's service department and factory fluid is used.

238K miles on the original transmission.

Went to have the transmission fluid changed in my 03 Turbo's 6-speed and a transmission leak was found (not the fluid's fault, bad seal) and Porsche replaced the transmission. (Under CPO warranty, thank Goodness.) But I was going to have the OEM fluid used. I've put nearly 20K miles on the replacement transmission (transmission is just fine thank you) and the car's due to go in next week (waiting for my Boxster to get out of the shop -- it went in a few weeks ago for a camshaft actuator solenoid/camshaft actuator R&R) for a clutch accumulator R&R (again thank Goodness for the CPO warranty!) and at the same time I'll have the replacement transmission's fluid changed.

With OEM fluid.

If it ain't broke, don't fix it.

Oh signs of a transmission about to give way.

The signs vary and a bad transmission may not exhibit all of them. A few might not exhibit any and just catastrophically fail, but these are rare though more likely of the car is treated to clutch dump drag starts, speed shifting, or has a heavily modified engine.

But generally: Grinding when upshifting/downshifting; popping out of gear; difficultly selecting 1st gear (or any other gear) with engine/transmission up to temp and engine idling and clutch fully depressed; noises; fluid leaks; hard to pinpoint vibration.

Sincerely,

Macster.

francars

OEM

Van

I believe the important thing is the GL5 rating.

ivangene

then its the 210 you want - as long as its the red stuff

the blue is for my 86'

Barn996

I switched to Swepco 210 and like it much better in the cold weather over stock fluid.

100plus

Anyone used Motyl Gear 75W-90 before?

OZ951

I put swepco 201 in my car a month ago and it was an improvement over the old gear oil. I have since swapped it out for Mobil SHC/Delvac and I find the Mobil to be a bit better than the 201. (Mine is an LSD Trans, no friction modifiers were added to the SHC)

dennis hiip

I went into NAPA to get Redline 75W-90 for my trans oil change and they had Valvoline Synpower on sale ($8.99/qt). They didn't have Redline, so I got the Valvoline. It's GL5. Anyone use this? It's gotta work good. Right?

ivangene

I believe that is what LVDell uses too....

Macster

Approved Transmission Oil and ATF (30/08)

Model Year: As of 2001 up to 2005.

This bulletin replaces bulletin Group 3, #3a/01, dated January 18, 2002.

[This bulletin dated Nov. 5, 2008]

Transmission Type:

Manual Transmission: G96/50, G96/88
Tip: A96/50-150
Front Axle final drive: Z96/00

Concerns: Approved ATF and transmission oil.

Information: Updated list of approved transmission oils. Information about miscibility of ATF.

As there are special requirements for the manual and Tip transmissions as well as the rear-axle and front axle final drive of the Turbo 996, 911 GT2 (996) only the ATF and transmission oil types tested by Porsche are approved.

NOTICE
Use of unapproved ATF or transmission oil:
- Excessive wear and damage to transmission parts.
- Reduced service life.
=> Only use the ATF and transmission oils listed below when topping up or changing ATF or transmission oil.

Approved Transmission Oil:

Transmission oil SAE 75W-90 for manual tranmission, front axle final drive (all wheel drive) and rear axle final drive (Tip).

000.043.204.20 Mobil (Mobilube PTX) (Can be mixed)
000.043.204.19 Shell (Transaxle) (Can be mixed)
999.917.546.00 Shell (Transaxle) (Can be mixed)

Manual transmission:
911 Turbo G96/50 - 000.043.204.20; 000.043.204.19 or 999.917.546.00

911 GT2 G96/88 - 000.043.204.20; 000.043.204.19 or 999.917.546.00

Front axle final drive (all wheel drive):
911 Turbo G96/50 - 000.043.204.20; 000.043.204.19 or 999.917.546.00


Rear axle final drive (Tip):

Vehicle type/
transmission type:
911 Turbo
A96/50/150 - 000.043.204.20; 000.043.204.19 or 999.917.546.00


Tip oil (ATF)
000.043.204.41 Shell ATF 3403-M115 (Can be mixed)
Fuchs ATF 3353 (Can be mixed)
999.917.227.00 Fuchs ATF 3353 Plus (Can be mixed)

Tip transmission:

Vehicle/
transmission type:

911 Turbo
A96/50-150 - 999.917.227.00 (or previous ATF specified above)

I know this is 996 forum and not a 996 Turbo forum but the above shows Porsche specifically approves certain manual and Tip transmission fluids and axle fluids and cautions against using any not on the approved list.

Why one would choose to go against this is beyond me.

No way one is going to save enough money to have on hand should a transmssion, Tip, or final drive require replacement due to using a non-approved fluid.

Sincerely,

Macster.