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Manual transmission oil
The transmission oil has to be changed at the
intervals listed in your Maintenance Schedule.
Hypoid oil SAE 75 W 90 labeled "For Service
API/GL5 or Mil-L2105B" must be used for
the manual transmission (also for limited
slip differential). Also see "Filling Capacities".
We recommend that you have the transmis-
sion oil changed at your Porsche dealer, who
has the required lubricants and the necessary
filling equipment.
If you suspect an oil leak in the transmission,
have your dealer check it out immediately.
Automatic transmission fluid
The torque converter and the transmission are
lubricated with Automatic Transmission Fluid
(ATF). The final drive requires hypoid oil SAE
90 only.
Do not tow the car or run the engine with-
out ATF in the transmission.
The automatic transmission may be da-
maged by even a tiny speck of dirt. Only a
clean funnel or spout must be used when
adding ATF.
Checking the ATF level
The ATF should be checked at the intervals
listed in your Maintenance Schedule. A cor-
rect ATF level is very important for the proper
functioning of the transmission.
The reading should be done when the ATF is
warm, with the engine idling, the selector lever
in Neutral and the parking brake applied.
The level of the ATF can be checked visually
through the transparent reservoir, located at
the rear end of the transmission housing. You
have enough ATF, if the fluid level is between
the MAX and the MIN mark on the reservoir.
The level should never be above or below
these two marks.
Should the fluid level in the transparent reser-
voir drop below the MIN mark or rise above
the MAX mark, do not just add or drain ATF.
Have your dealer check and correct the cause
promptly.
In the event of a noticeable loss of ATF,
contact your dealer immediately.
Changing the ATF
The ATF has to be changed at the intervals
listed in your Maintenance Schedule.
When refilling, the level must reach the mark
below the MIN mark. Also see "Filling Capac-
ities". The hypoid oil in the final drive does
not have to be changed.
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