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Motor Oils
Use only branded HD oils which satisfy the
API classification API SE or SF for gasoline
engines. These classifications are often given
together with the classifications for diesel en-
gines, e. g., SE/CC, SF/CC or SF/CD.
Single-grade, multigrade and fuel-economy
oils can be mixed provided the viscosity grades
correspond to outdoor temperatures.
Single-Grade Oils
Single-grade oils may only be used when
multigrade oils are not available and the car is
being used under normal conditions. To pre-
vent damage, the oil must be changed as re-
quired when temperatures change consider-
ably.
Multigrade Oils
The oil change intervals given in the service
schedule apply when multigrade oils are used.
For all-season use only the multigrade oils
indicated the table opposite may be used, in
accordance with prevailing air temperatures.
Fuel-economy Oils
In addition to single-grade and multigrade oils,
"fuel-economy" oils are available (developed
for all-year round use). Before using these
unconventional oils, consult your authorized
Porsche dealer.
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