Porsche 928 S 1986 Driver Manual page 62

Oil level gearbox
Checking oil level of manual transmission
and differential of automatic transmission
To check the oil level, the plug must be wiped
clean and removed by unscrewing.
With the vehicle standing horizontally, the oil
(cold) should be topped up to the lower lip of
the hole.
To refill the gearbox, only use the oils recom­
mended in the table "Filling quantities".
58
Checking oil level of automatic
transmission (ATF)
The level can be seen through the transparent
reservoir that is mounted on the back end of
the gearbox housing. The fluid level must be
between the max. and min. marks when at
normal operating temperature.
To check the level, the vehicle must be stand­
ing level. The selector must be in position Ν
and the engine running at tick-over.
The difference between the two marks is
approx. 0.2 litre (1/2 pint).
Should oil leakage be visible the next ga­
rage should be called into rectify the fault.
If too much oil is added inadvertently, it
must be removed.