Skoda Octavia Owner's Manual page 170

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Hold the fuel filler cap on the fuel filler tube with one hand and lock it by turn-
ing the vehicle key to the right and remove the key.
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Close the fuel filler flap until it clicks into place.
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Check that the fuel filler flap is closed properly.
Incorrect refuelling guard on vehicles with diesel engines
The fuel filler tube on vehicles with diesel engines has been fitted with a incor-
rect refuelling guard » Fig. 145. This guard means it is only possible to refuel with
the diesel pump nozzle.
If the diesel pump nozzle does not sit directly in the fuel filler tube, move it to and
fro with slight pressure to insert it correctly.
CAUTION
The fuel tank is full just as soon as the pump nozzle switches off for the first
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time, provided the nozzle has been operated properly. Do not continue filling the
fuel tank otherwise the expansion volume is filled up.
Before refuelling, switch off the auxiliary heating system (auxiliary heating and
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ventilation).
Be careful when filling diesel fuel from the spare canister - danger of contami-
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nating the body.
Note
The fuel tank has a capacity of about 50 litres, containing a reserve of approx.
7 litres.
Unleaded petrol
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First read and observe the introductory information and safety warn-
ings on page 167.
Your vehicle can only be operated with unleaded fuel that complies with the
standard EN 228 (in Germany: standard DIN 51626-1 or E10 for unleaded fuel with
an octane rating of 95 RON and 91 RON or DIN 51626-2 or E5 for unleaded fuel
with the octane rating 95 RON and 98 RON).
Prescribed fuel – unleaded fuel 95/91 RON
Use unleaded fuel with the octane rating 95 RON. Unleaded petrol 91 RON can al-
so be used but results in a slight loss in performance.
Prescribed fuel – unleaded petrol min. 95 RON
Use unleaded fuel with the octane rating 95 RON.
168
General Maintenance
In case of necessity, you can refuel with petrol with the octane rating 91 RON if
petrol with the octane rating 95 RON is not available.
Even in the event of an emergency, petrol of a lower octane number than 91 RON
must not be used, otherwise the engine can be severely damaged!
Unleaded petrol with higher octane number
Unleaded petrol that has a higher octane number than that required by the en-
gine can be used without limitations.
On vehicles with prescribed unleaded petrol 95/91 RON, the use of petrol with a
higher octane number than 95 RON does not result in a noticeable power in-
crease or a lower fuel consumption.
On vehicles using prescribed unleaded petrol of min. 95 RON, the use of petrol
with a higher octane number than 95 RON can increase the power and reduce
fuel consumption.
Prescribed fuel – unleaded petrol 98/(95) RON
Use unleaded fuel with the octane rating 98 RON. Unleaded petrol 95 RON can
also be used but results in a slight loss in performance.
In case of necessity, you can refuel with petrol with the octane rating91 RON of
unleaded fuel with octane rating 98 RON or 95 RON is not available.
Even in the event of an emergency, petrol of a lower octane number than 91 RON
must not be used, otherwise the engine can be severely damaged!
Fuel additives
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Only use unleaded petrol, which complies with the standard EN 228 (in Germany:
standard DIN 51626-1 or E10 for unleaded fuel with an octane rating of 95 RON
and 91 RON or DIN 51626-2 or E5 for unleaded fuel with an octane rating of
95 RON and 98 RON), as these meet all of the requirements for fault-free engine
operation. We therefore recommend that no fuel additives are used.
CAUTION
All ŠKODA vehicles with petrol engines must only be operated with unleaded
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petrol. Just filling the tank with leaded petrol once will damage the exhaust sys-
tem!
If, in an emergency, the vehicle has to be refuelled with petrol of a lower octane
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number than the one prescribed, the journey must only be continued at medium
engine speeds and a low engine load. Driving at high engine revs or a high engine
load can severely damage the engine! Refuel using petrol of the prescribed oc-
tane number as soon as possible.
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