Engine Oil - Porsche 928 1980 Owner's Manual

Engine oil

Always use a quality oil labeled "For service
API/SE". Let your Porsche dealer assist you
with selecting the correct grade and visco-
sity.
Porsche recommends not to use any oil
additives.
The engine in your car depends on oil to
lubricate and cool all of its moving parts.
Therefore the engine oil should be checked
regularly and kept at the required level.
Make it a habit to have the engine oil level
checked with every second fuel filling.
Checking oil level
To get a true reading, the car should be on
level ground. After turning off the engine,
wait a few minutes for the oil to return to the
oil sump.
1. Pull out dipstick and wipe it clean with a
rag.
2. Reinsert dipstick; push it in all the way for
an accurate reading.
3. Pull dipstick out again. The oil level is cor-
rect if it is between the "max" and " m i n "
marks on the dipstick.
4. If oil level is below " m i n " mark, or not
showing on dipstick, add oil immediately.
The difference between the two marks is
about 1.6 U.S. qt. or 1.5 liter.
50
Should the engine oil level be too low, the
central warning light and the engine oil
level warning light will flash as soon as
the ignition is turned on (see "Central
warning light system"). Do not start the
engine but add oil immediately or contact
your Porsche dealer.
See "Cautions"
Adding engine oil
Only add the amount of oil that is needed.
The correct oil grade and viscosity recom-
mendation is given under "Filling Capaci-
ties".
1. Remove oil filler cap (arrow).
2. Top up with quality oil labeled "For Ser-
vice API/SE".
3. Check oil level on dipstick - upper mark
should not be exceeded.
4. Replace cap and tighten.