oil additives SKODA OCTAVIA 2012 2.G / (1Z) Owner's Manual

■Engine parts can be damaged if petrol with a lower octane number than the one
prescribed is used.■
In no case may fuel additives with metal components be used, especially not
with manganese and iron content. Do not use any LRP fuels (lead replacement petrol) with metal parts - risk of serious damage to parts of the engine or exhaust
system!
■
Do not use any fuels with metal parts - risk of serious damage to parts of the
engine or exhaust system!
■
The use of unsuitable fuel additives can cause considerable damage to parts of
the engine or the exhaust system.

Diesel fuel
First read and observe the introductory information and safety warn-ings
on page 167.
Your vehicle can only be operated with diesel fuel, which complies with the
standard EN 590 (standard DIN 51628 in Germany, standard ÖNORM C 1590 in
Austria, GOST R 52368-2005/EN 590:2004 in Russia).
All diesel engines can be operated with diesel fuel with a maximum content of
7 % bio-fuel (B7), which complies with the standard DIN 52638 in Germany (in
Austria C 1590, in France EN 590).
Operation in winter – Winter-grade diesel fuel In the cold season, only use “winter-grade diesel fuel” which will still operateproperly even at a temperature of -20 °C.
It is often the case in countries with different climatic conditions that diesel fuels available 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 -25 °C.
Fuel additives
Fuel additives, so-called “flow improvers” (petrol and similar products) must not
be added to the diesel fuel.
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!■
Damage caused by using diesel fuel which does not comply with the standards
are excluded from the warranty.
■
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 the
fuel system is cleaned by a ŠKODA Partner.
■
Water which has collected in the fuel filter can cause engine faults.
■
Your vehicle is not adapted for use of 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.
■
Comply with the proscribed oil change intervals.

Engine compartment
 Introduction
This chapter contains information on the following subjects:
Opening and closing the bonnet
171
Engine compartment overview
172
Checking the engine oil level
172
Replenishing the engine oil
173
Changing engine oil
173
Coolant
173
Checking the coolant level
174
Replenishing the coolant
175
Radiator fan
175
Checking the brake fluid
175
Brake fluid change
176
Windscreen washer system
176

169Inspecting and replenishing

We recommend maintaining the oil level within the range A, but not above , if
the engine has been operating at high loads, for example, during a lengthy motor-
way trip during the summer months, towing a trailer or negotiating a high moun- tain pass.
The warning light in the instrument cluster will indicate whether the oil level is too low » page 15 . Check the oil level using the dipstick as soon as possible. Add
oil accordingly.WARNINGDo not continue your journey if for some reason it is not possible  to top up
the engine oil under the prevailing conditions! Switch off the engine and seek
assistance from a ŠKODA specialist garage.
CAUTION
The oil level must on no account extend beyond the range A » Fig. 149 - Risk of
damaging the exhaust system!
Replenishing the engine oil
First read and observe the introductory information and safety warn-
ings
on page 169.
›
Check the engine oil level » page 172.
›
Unscrew the cap of the engine oil filler opening » Fig. 148 on page 172.
›
Replenish the oil in portions of 0.5 litres in accordance with the correct specifi-
cations » page 209 .
›
Check the oil level » page 172.
›
Carefully screw on the oil filler opening cap and push the dipstick in fully.

Changing engine oil
First read and observe the introductory information and safety warn-
ings
on page 169.
The engine oil must be changed at the intervals stated in the Service schedule or
according to the service interval indicator » page 11.
CAUTION
Do not pour any additives into the engine oil - Risk of serious engine damage!
Damage, which results from such product, are excluded from the warranty.
Note
If your skin has come into contact with oil, it must be washed thoroughly.
Coolant
First read and observe the introductory information and safety warn-ings
on page 169.
The coolant consists of water with a concentration of coolant additive. This mix-
ture guarantees antifreeze protection, protects the cooling/heater system
against corrosion and prevents the formation of scale.
Vehicles exported to countries with a mild climate are already factory-filled with
a coolant which offers antifreeze protection down to about -25 ℃. In these coun-
tries the concentration of coolant additive should be at least 40 %.
Vehicles exported to countries with a cold climate are already factory-filled with a
coolant which offers antifreeze protection down to about -35 °C. In these coun-
tries the concentration of coolant additive should be at least 50 %.
If a higher concentration of antifreeze is required for climatic reasons, the amount
of coolant additive can only be increased up to a maximum of 60 % (antifreeze
protection down to approx. -40 °C).
When refilling, only use the same antifreeze written on the antifreeze expansion tank » Fig. 150 on page 174. 
173Inspecting and replenishing

Brake fluid changeFirst read and observe the introductory information and safety warn-
ings
on page 169.
Brake fluid absorbs moisture. Over time it therefore absorbs moisture from the
environment.
Excessive water in the brake fluid may be the cause of corrosion in the brake sys-
tem.
The water content lowers the boiling point of the brake fluid.
The brake fluid must comply with the following standards or specifications: › VW 50114;
› FMVSS 116 DOT4.
WARNINGDo not use used brake fluid - the function of the brake system may be im-
paired - risk of accident!
CAUTION
Brake fluid damages the paintwork of the vehicle.
Note
The brake fluid is replaced as part of a proscribed Inspection service carried out by
a ŠKODA Partner.
Windscreen washer system
Fig. 152
Engine compartment: Wind-
screen washer fluid reservoirFirst read and observe the introductory information and safety warn-
ings on page 169.
The windscreen washer fluid reservoir is located in the engine compartment and
contains the cleaning fluid for the windscreen or rear window and for the head-
light cleaning system.
The capacity of the reservoir is about 3 litres or about 4.7 litres on vehicles that
have a headlight cleaning system.
Clear water is not sufficient to intensively clean the windscreen and headlights.
We recommend using clean washing water together with the screen cleaner from
the range of ŠKODA Original Accessories (in winter additionally with antifreeze)
which is capable of removing stubborn dirt.
In Winter, the washing water should always be mixed with antifreeze even if the
vehicle has heated windscreen washer nozzles.
Under exceptional circumstances, methylated spirits can also be used if no screen
cleaner with antifreeze is available. The concentration of methylated spirits must
not be more than 15 %. The freeze protection at this concentration is sufficient
only to -5 °C.
CAUTION
■ Under no circumstances must radiator antifreeze or other additives be added to
the windscreen washer fluid.■
If the vehicle is fitted with a headlight cleaning system, only cleaning products
which do not attack the polycarbonate coating of the headlights must be added
to the windscreen washer fluid.
■
Do not remove the filter from the windscreen washer fluid reservoir when re-
plenishing it with liquid otherwise the liquid transportation system can be conta-
minated, which can cause the windscreen washer system to malfunction.

Vehicle battery
 Introduction
This chapter contains information on the following subjects:
Battery cover
178
Checking the battery electrolyte level
179
Charging a vehicle battery
179


176General Maintenance