fuel additives SKODA OCTAVIA TOUR 2009 1.G / (1U) Owner's Manual

Fuel
155
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data
FuelPetrolGrades of petrolThere are various grades of petrol. Please
check in order to know which grade of
petrol your vehicle requires.
You will also find the same information affixed to the
inside of the fuel filler flap of your vehicle
⇒page 156.
A distinction is made between unleaded an
d leaded petrol. All Škoda vehicles with
petrol engines are equipped with a catalyti
c converter and must therefore be only
driven with
unleaded petrol
. Unleaded petrol complies with the
standard EN 228
.
The individual grades of petr
ol are distinguished by their
octane number
(RON).
Please adopt the following procedure if the grade of petrol which you normally use is not be available in
exceptional circumstances:
•
Engines which need
unleaded premium petrol 95 RON
can also be run on
unleaded regular petrol 91 RON. This does, however, result in a slight loss in performance.•
Engines which need
unleaded premium plus 98 RON
can also be run on
unleaded premium petrol 95 RON. This coul
d result in a slight loss in engine
performance. You can
in case of need
also use unleaded regular petrol 91 RON in
the event that neither unleaded premiu
m plus 98 RON nor unleaded premium
petrol 95 RON is available. Refuel as soon as possible with unleaded premium plus 98 RON or unleaded premium petrol 95 RON. If, in an emergency, the only fuel availa
ble is one which has a lower octane number
than that required by the engine then only drive at medium engine speeds and lower engine loadings. You can make unlimited use of fuel whic
h has a higher octane
number than that
required by the engine. There will, howeve
r, be no advantages gained by this in
terms of engine performance and fuel consumption! The handling, performance and
life of your engine are determined to a significant
extent by the quality of the fuel.
Do not use any petrol additives.
Use a fuel
complying with
the standard.
You can find further information on refuelling
⇒page 156, “Refuelling”.
Caution
•
Filling the tank even only once with lead
ed petrol will result in the catalytic
converter being destroyed.•
Operating the engine with petrol of a lo
w octane number can result in engine
damage at high revolutions or severe engine loading.DieselDiesel fuelYour vehicle can be operated with
diesel fuel
, which complies with the standard
EN 590
.
Fuel additives You must not use fuel additives, so-called “flow improvers” (petrol and similar products) in diesel fuel. If the quality of the diesel fuel is poor, it is then necessary to drain the
fuel filter

more often than stated in the Service schedule. You can find information on refuelling
⇒page 156, “Refuelling”.
Caution
•
Use fuel which complies with the standard
DIN EN 590
. Filling the tank even
only once, which does not comply with th
e standard, can result
in damage to the
fuel system.•
Water which has collected in the fuel fi
lter can result in engine problems.
•
Your vehicle is not adapted
for use of biofuel (RME), therefore this fuel must not
be refuelled and driven. Using this fuel (RME) can lead to damage to the engine or the fuel system.
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Fuel
156
Operation in winterWinter-grade diesel fuel A different grade of diesel fuel is available at
filling stations in winter than during the
summer. Using “summer-grade diesel fuel” at
temperatures below 0°C can result in
operational problems because the diesel be
comes viscous as a result of paraffin
separation. It is therefore the case that EN 590 prescribes diesel fuel class for certain periods of the year which can also be purchased at
the corresponding time during the year.
“Winter-grade diesel fuel” will still operate properly even at a temperature of -20°C. It is often the case in countries with diff
erent climatic conditions that diesel fuels
available have a different temperature characteristic. The specialist garages and the filling stations in the country concerned wi
ll be able to provide you with informa-
tion regarding the diesel fuels available. Prewarming fuel The vehicle is fitted with a fuel filter prewarming system. This secures operation of a vehicle using diesel fuel down to an environmental temperature of -25°C.
Caution
It is not permitted to add the various fuel
additives on the market, including petrol,
to diesel fuel in order to
improve its flow properties.
RefuellingThe filler tube of the fuel reservoir is
located in the rear right side part of
the vehicle. Opening the fuel filler cap – Open the fuel filler flap with the hand. – On vehicles without remote unlocking
of the fuel filler flap from the
driver's seat, unlock the fuel filler cap on the fuel filler tube by turning the vehicle key to the left.
Fig. 145 Switch for opening the fuel filler flap from the driver seatFig. 146 Fuel filler flap with cap unscrewed
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