fuel additives SKODA ROOMSTER 2009 1.G Owner's Manual

Fuel181
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Praktik
Technical Data
FuelPetrolGrades of petrolThere are various grades of petrol. Please read the chapter ⇒page 233, “Technical
Data” 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 182, fig. 173.
A distinction is made between unleaded and leaded petrol. All Škoda vehicles with
petrol engines are equipped with a catalytic converter and must therefore be only
driven with unleaded petrol. Unleaded petrol complies with the standard EN 228.
The individual grades of petrol 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.
If, in an emergency, the only fuel available 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 which has a higher octane number than that
required by the engine. There will, however, 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 fuel which
complies with the standard EN 228.
You can find further information on refuelling ⇒page 182.
Caution
•
Filling the tank even only once with leaded petrol will result in the catalytic
converter being destroyed.
•
Operating the engine with petrol of a lower octane number than that prescribed
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 182, “Refuelling”.
Caution
•
Use fuel which complies with the standard EN 590. Filling the tank even only
once, which does not comply with the standard, can result in damage to the fuel
system.
•
Water which has collected in the fuel filter 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 182Operation 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 becomes 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 different climatic conditions that diesel fuels
available have a different temperature characteristic. The specialist garages and the
filling stations in the country concerned will 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.
RefuellingOpen fuel filler flap
– Open the fuel filler flap with the hand.
– Unlock the fuel filler cap on the fuel filler tube to the left using the
vehicle key.
– Unscrew the fuel filler cap anti-clockwise and place the fuel filler cap
from above on the fuel filler flap ⇒fig. 173.
Closing fuel filler cap
– Screw on the cap by turning it to the right until it is heard to lock.
Fig. 172 Right rear side of
the vehicle: Fuel filler flapFig. 173 Fuel filler flap with
cap unscrewed
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