Catalytic Converter - Porsche 928 S 1986 Driver Manual

Container for concentrated
wash system
The fluid reservoir is mounted at the right on
the front bonnet lock cross member and holds
approx. 0.6 litres (1 pint) of cleaning fluid. To
avoid damage to the paintwork, only "Porsche
special silicone remover" should be used.
Other cleaning agents are not suitable for the
concentrated washer system, but if this spe-
cial solution is not obtainable, a proprietary
solution can be used, following the manufac-
turer's recommendations for mixing quanti-
ties. "Porsche special silicone remover" is
proofed against frost down to - 2 5 ° C.
62
Fuel tank
The fuel tank filler is set in the rear quarter
panel behind the right-hand rear wheel.
An extra area is built in to stop the fuel from
overflowing when it warms up. This area should
not be filled when filling up with fuel.
After filling up, the filler cap should be screwed
on until it is felt to be fully home.
When refuelling, the engine should always
be turned off.
The fuel tank holds approx. 86 litres (19 Imp.
galls.). When the central warning light and the
fuel tank warning light in the instrument con-
sole come on, you should refill the tank. You
have only about 8 litres (7 Imp. qts.) of fuel left.
F u e l (See "Emission Control System"
for fuel requirement for vehicles
fitted with catalytic converters.)
Vehicles without catalytic converters can run
on any leaded premium fuel complying with
DIN 51600 or on unleaded premium fuel as
per DIN 51607 as long as the octane numbers
of the fuel are at least 98 RON and 88 MON.
Unleaded premium fuel to DIN 51607 cur-
rently only has 95 RON and 85 MON. These
octane numbers are not sufficient.
If high-octane fuel is unavailable (e.g. abroad),
making it necessary to drive using low-octane
fuel, you should accelerate gently, change
speeds in good time and avoid driving at top
engine speeds in order to prevent ignition
knock (pinging). If you intend to drive for more
than a short period in a country where high-
octane fuel is unavailable, you should consult
your Porsche dealer regarding adjustment of
the ignition control unit.
You must always turn off the engine when
filling the fuel tank.