Cooling System - Porsche 928 GTS 1994 Owner's Manual

Windshield washer fluid
reservoir (A)
The transparent fluid reservoir is located in the
right rear in the engine compartment, in front of
the expansion tank (see illustration) and has a
capacity of approx 7.5 liters (2 U.S. gals.). If the
fault message appears in the information system
display, there is approx. 1 liter (1 U.S. qt.) of
fluid remaining in the reservoir. As clear water is
normally not adequate to keep your windshield
and headlights clean, add a cleaning solution to
the water.
74
To top up with washing fluid, you can pull out
the filling tube extension.
To assure that the windshield washer and the
headlight washer systems also function at freez-
ing temperatures, anti-freeze/cleaning solution
must be added to the water beforehand. Follow
the instructions on the can for the right amount
to be used.
Do not use engine coolant antifreeze or
any other solution that can damage the car
paint.
Cooling system (B)
Only use additives recommended for alu-
minium engines and radiators.
Porsche dealer will be able to advise you.
For year round driving, anti-freeze is added at
the factory for temperatures down to:
-23° F/30° C for U.S.
-40° F/40° C for Canada
Because of its anti-corrosion properties, anti-
freeze should also remain in the cooling system
for summer operation. Cooling system capacity
and specified anti-freeze and water ratios are
listed under "Filling Capacities".
Use any quality phosphate-free anti-freeze con-
taining ethylene glycol, available at your Porsche
dealer. Anti-freeze other than specified by
Porsche for aluminium engines and radia-
tors may cause corrosion of the cooling
system, leading to engine overheating and
damage.
Only for topping up coolant, a small amount of
anti-freeze containing
phosphates may be used if recommended anti-
freeze is not available.
The anti-corrosion properties and the antifreeze
consistency will diminish gradually. We recom-
mend renewing the coolant mixture at least
Your
every 2 years.
WARNING
Even after the engine has stopped, the radia-
tor fan may continue running until tempera-
ture of the coolant has dropped to a certain
level. Therefore, never touch the fan blades
as they will rotate spontaneously when the
thermostat turns the fan on, even with igni-
tion off.
ethylene glycol and