Fuel; Petrol; Diesel - Skoda YETI - 11-2009 Owner's Manual

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Fuel

Fuel

Petrol

Grades of petrol
There are various grades of petrol. Please read ⇒ page 243, "Technical Data" in order
to know which grade of petrol your vehicle requires. You will also find the same infor-
mation affixed to the inside of the fuel filler flap of your vehicle
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 201, "Refuelling".
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 low octane number can result in engine
damage at high revolutions or severe engine loading.

Diesel

Diesel fuel
Your vehicle can be operated with diesel fuel, which complies with the standard
EN 590.
⇒ page 201, fig.
168.
Fuel additives
You must not use fuel additives, so-called "flow improvers" (petrol and similar prod-
ucts) 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 201, "Refuelling".
Caution
•
Only 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 biodiesel, therefore this fuel must not be refu-
elled and driven. Using this biodiesel can lead to damage to the engine or the fuel
system.
Operation in winter
Winter-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 sepa-
ration.