Manual transmission fluid
The transmission oil has to be changed at
the intervals listed in your Maintenance
Schedule.
Hypoid oil SAE 75W-90 labeled "For Service
API/GL5 or Mil-L 2105B" must be used for
the manual transmission (also for limited
slip differential). A l s o see "Filling Capac-
i t i e s " .
If multi-grade hypoid oil is not readily
available, use ATF D e x r o n ® .
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 transmis-
sion, have your dealer check it out immedi-
ately.
Automatic transmission fluid
The torque c o n v e r t e r 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 damaged
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 v e r y 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 ap-
plied.
The level of the ATF can be checked visually
through the transparent reservoir, located at
the rear end of the transmission housing.
Y o u 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 re-
servoir d r o p b e l o w the M I N mark or rise
above the M A X mark, do not just add or
drain ATF. Have your dealer check and cor-
rect 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 M I N mark. Also see "Filling C a p a c i t i e s " .
The hypoid oil in the final drive does not
have to be changed.
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