Porsche 928 1980 Owner's Manual page 88

Engine hood release
Pull lever on left underneath
dashboard. Pull safety hook
under hood. Lift engine hood.
Battery
Underneath spare tire in lug-
gage compartment. Check
each cell. Top up with distilled
water. Never disconnect bat-
tery while engine is running:
this will destroy the alternator.
Before connecting quick-char-
ger, battery must be discon-
nected.
Brake fluid reservoir
Level should be between MIN
and MAX marks.
Only use new, unused brake
fluid according to SAE recom-
mendation J 1703 or DOT 3
and conforming to Motor Ve-
hicle Safety Standard 116.
Do not use silicone base
brake fluid (DOT 5). Even the
smallest traces may cause
severe corrosion in the brake
system.
Engine oil dipstick
Check oil level a few minutes
after engine has stopped. Le-
vel should be between upper
and lower marks on dipstick.
Difference between marks is
approx. 1.6 U.S. qt. or 1.5 liter.
Engine oil
Use only quality HD oils "For
Service API/SE". Details un-
der "Filling Capacities". With-
out filter change 7.93 U.S. qts.
or 7.5 liters; with filter change
8.45 U.S. qts. or 8 liters.
Check oil level as prescribed.
Manual transmission
For manual transmission (also
for limited slip differential) use
hypoid oil SAE 75 W-90 label-
ed "For service API / G L 5 or
Mil-L 2105 B". If 75 W-90
hypoid is not readily available,
use 80 W-90. Total quantity
approx. 4 U.S. qts. or 3.8
liters.
Automatic transmission
ATF lubricates torque conver-
ter and transmission. Check
ATF level visually through
transparent reservoir at rear
end of transmission housing
when ATF is warm, with engine
idling, selector lever in Neutral
and car on level ground.
Should level be below MIN or
above MAX mark, do not just
add or drain ATF. Have a
Porsche dealer correct the
cause promptly.
For differential use oils API/
GL 5 (or Mil-L 2105 B), vis-
cosity SAE 90.
87