2013 SKODA OCTAVIA fuel additives

›Place the filler cap onto the fuel filler neck and turn it clockwise until it securely
engages.›
Close the fuel filler flap until it clicks into place.
Check that the fuel filler flap is closed properly.
Incorrect refuelling guard on vehicles with diesel enginesThe fuel filler tube on vehicles with diesel engines has been fitted with a incor-rect refuelling guard » Fig. 179. 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
time, provided the nozzle has been operated properly. Do not continue filling the fuel tank otherwise the expansion volume is filled up.■
Be careful when filling diesel fuel from the spare canister – danger of contami-
nating the body.
■
The diameter of the diesel pump nozzle can be identical to that of the petrol
pump nozzle in some countries. When driving in these countries, the incorrect fu-
elling protection should be removed by a specialist company.
Note
The fuel tank has a capacity of about 50 litres, containing a reserve of approx.
7 litres .
Unleaded petrol
First read and observe the introductory information and safety warn-
ings
on page 212.
Your vehicle can only be operated with unleaded petrol in compliance with the
EN 228 1)
standard.
All petrol engines can be operated using petrol that contains at most 10% bioe-
thanol (E10).
Required fuel - unleaded petrol 95/91 or 92 or 93 RON
Use unleaded fuel with the octane rating 95 RON. Unleaded petrol with the oc-
tane ratings 91, 92 or 93 RON can also be used, but may result in a slight loss in
performance.
Prescribed fuel – unleaded petrol min. 95 RON
Use unleaded fuel with the octane rating 95 RON or higher.
In case of necessity, you can refuel with petrol with the octane ratings 91, 92 or
93 RON, if petrol with the octane rating 95 RON is not available »
.
Prescribed fuel – unleaded petrol 98/(95) RON Use unleaded fuel with the octane rating 98 RON or higher. 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 ratings 91, 92 or
93 RON, if unleaded fuel with octane rating 98 RON or 95 RON is not availa-
ble »
.
Fuel additives
Unleaded petrol in accordance with the EN 228 standard 1)
meets all the condi-
tions for a smooth-running engine. We therefore recommend that no fuel addi-
tives are used. This can result in considerable damage to parts of the engine or
the exhaust system.
CAUTION
■ Even filling the tank with leaded petrol that does not meet the standards once
can lead to serious damage to parts of the exhaust system!■
If a fuel other than unleaded fuel which complies to the above mentioned
standards (e.g. leaded petrol) is used by mistake, do not start the engine or
switch on the ignition! Extensive damage to engine parts can occur! We recom-
mend that you have the fuel system cleaned by a specialist garage. 
1)
In Germany also DIN 51626-1 or E10 for unleaded petrol with octane number 91 or 95 or DIN 51626-2
or E5 for unleaded petrol with octane number 95 and 98.
213Inspecting and replenishing

CAUTION■If, in an emergency, the vehicle has to be refuelled with petrol of a lower octane
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.■
Engine parts can be damaged if petrol with a lower octane number than the one
prescribed is used.
■
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!
CAUTION
■ In no case may fuel additives with metal components be used, especially not
with manganese and iron content. LRP(lead replacement petrol) fuels with metal-
lic components may not be used. There is a risk of causing considerable damage
to parts of the engine or exhaust system!■
Fuels with metallic content may not be used. There is a risk of causing consider-
able damage to parts of the engine or exhaust system!
Note
■ 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, 92 or 93 RON, the use of
petrol with a higher octane number than 95 RON does not result in a noticeable
power increase 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.

Diesel fuel
First read and observe the introductory information and safety warn-ings
on page 212.
Your vehicle can only be operated with diesel fuel that meets the EN 5901)
stand-
ard.
All diesel engines can be operated using diesel fuel with at most 7% biodiesel
(B7) 2)
.
On the Indian market, your vehicle will only be able to run on diesel fuel compli-
ant with standard IS 1460/Bharat IV. If diesel fuel which complies with this stand-
ard is not available, you can refuel with diesel fuel according to standard IS 1460/
Bharat III in case of emergency.
Operation in winter – Winter-grade diesel fuel
In the cold season, only use “winter-grade diesel fuel” which will still operate properly even at a temperature of -20 °C.
It is often the case in countries with different climatic conditions that diesel fuelsavailable have a different temperature characteristic. The ŠKODA Partners and
filling stations in the relevant country will be able to provide you with information
regarding the diesel fuels available.
Preheating fuel
The vehicle is fitted with a fuel filter preheating system. This secures operation of a vehicle using diesel fuel down to an environmental temperature of -24 ℃.
Diesel fuel additives
Additives, so-called “flow improvers ” (petrol and similar agents) should not be mixed with the diesel fuel. This can cause serious damage to engine or exhaust
system parts. 

1)
In Germany also DIN 51628, in Austria ÖNORM C 1590, in Russia GOST R 52368-2005 / EN 590:2004.
2)
In Germany according to the DIN 52638 standard, in Austria ÖNORM C 1590, in France EN 590.
214General Maintenance

CAUTION■Just filling the tank once with diesel fuel that does not comply with the stand-
ard, can cause severe damage to parts of the engine, the fuel and exhaust sys-
tem!■
If a different fuel other than diesel fuel, which complies to the above mentioned
standards (e.g. petrol) is used by mistake do not start the engine or switch on the
ignition! Extensive damage to engine parts can occur! We recommend that you
have the fuel system cleaned by a specialist garage.
■
Water which has collected in the fuel filter can cause engine faults.
CAUTION
■ Your vehicle cannot be operated with biofuel RME, therefore this fuel must not
be refuelled and driven. The use of biofuel RME can cause considerable damage
to parts of the engine or fuel system.■
Do not mix any fuel additives, so-called “flow improvers” (petrol and similar
agents) into the diesel. This can result in considerable damage to parts of the en-
gine or the exhaust system.

Engine compartment
 Introduction
This chapter contains information on the following subjects:
Opening and closing the bonnet
217
Engine compartment overview
218
Radiator fan
218
Windscreen washer system
218WARNINGWhen working in the engine compartment, injuries, scolding, accident or fire
hazards may arise. For this reason, it is essential to comply with the warning
instructions stated below and with the general applicable rules of safety. The
engine compartment of your car is a hazardous area!WARNINGBefore beginning work in the engine compartment, please read the following
advice.■
Turn off the engine and withdraw the ignition key.
■
Firmly apply the handbrake.
■
If the vehicle is fitted with a manual gearbox, move the gearshift lever into
Neutral, or if the vehicle is fitted with an automatic gearbox, move the selec-
tor lever into position P.
■
Allow the engine to cool.
■
Never open the bonnet if you can see steam or coolant flowing out of the
engine compartment – risk of scalding! Wait until the steam or coolant has
stopped escaping.
WARNINGWhile working in the engine compartment, please read the following advice.■Keep children clear of the engine compartment.■
Never touch the radiator fan while the engine is still warm. The fan might
suddenly start running!
■
Do not touch any hot engine parts – risk of burns!
■
The coolant additive and thus all of the coolant is harmful to your health.
■
Avoid contact with the coolant.
■
Coolant vapours are harmful to health.
■
Never open the end cover of the coolant expansion reservoir while the en-
gine is still warm. The cooling system is pressurized!
■
When opening the end cover of the coolant expansion reservoir, cover it
with a cloth to protect your face, hands and arms from hot steam or hot cool-
ant.
■
If any coolant splashes into your eyes, immediately rinse out your eyes with
clear water and contact a doctor as soon as possible.
■
Always safely store the coolant additive in its original container out of the
reach of children – risk of poisoning!
■
If coolant is swallowed, consult a doctor immediately.
■
Do not leave any items (e.g. cloths or tools) in the engine compartment.
■
Never spill fluids on the hot engine. Such fluids (e.g. the antifreeze con-
tained in the coolant) may ignite! 
215Inspecting and replenishing