Porsche 928 S 1984 Owner's Manual page 68

Changing oil and filter
High quality multi-grade oils are suitable for
all year round driving. Seasonal oil changes
are therefore not necessary. Only if multi-grade
oils are not readily available, a single-grade
oil of the correct viscosity can be used. Speci-
fications of the various oils to be used are
detailed under "Filling Capacities". The use
of oil additives is not recommended by
Porsche.
WARNING
• When removing oil drain plug with your
fingers, keep your arms as high as pos-
sible. This will prevent hot oil from run-
ning down your arm. Wear eye protection.
• Always use a new gasket when reinstall-
ing the plug. Do not overtighten the plug.
Be mindful of how you dispose of used
engine oil. Do not dump it on the ground,
into open streams or down sewage drains.
Your zoning regulations or environmental
rules will tell you how you can dispose of it.
Should the disposal of old engine oil pre-
sent a problem, we suggest that you have
your oil changed at your dealer or at a
service station.
Oil change intervals specified in the War-
ranty & Maintenance booklet accompanying
the vehicle apply to normal operating condi-
tions and must be adhered to, including inter-
vals for oil filter change.
If you drive mostly short distances, or if you
operate the vehicle in dusty areas, or under
predominantly stop-and-go traffic conditions,
or when temperatures remain below freezing
for extended periods, the engine oil should be
changed more frequently.
Changing engine oil
With the engine at operating temperature and
ignition off.
1. Loosen and remove oil filler cap.
2. Loosen oil drain plug (arrow) on oil pan and
allow oil to drain completely.
3. Loosen oil filter element with appropriate
wrench and remove.
4. Lightly coat new filter seal with oil.
5. Screw on new filter element until seal just
contacts the crankcase. Only handtighten
according to filter manufacturer's instruc-
tions on container or filter element.
6. Clean oil drain plug and replace, using a
new gasket. Do not overtighten the plug.
7. Fill the crankcase with about 7.9 U.S. qts.
or 7.5 liters of engine oil labeled "API Ser-
vice SF or SE" (see "Filling Capacities").
8. Check the oil level with dipstick and rein-
stall oil filler cap.
9. Run engine at various speeds for 3 - 5
minutes and check for leaks.
See "Cautions".
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