Fuel170
Fuel
Petrol
Grades of petrol
There are various grades of petrol. Please read ⇒page 223, “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 171, fig. 153.
A distinction is made betwee n unleaded and leaded petrol. All Škoda vehicles with petrol engines are equipped with a cataly tic converter and must therefore be only driven with unleaded petrol. Unleaded petrol complies with the standard DINEN228 .
The individual grades of petr ol are distinguished by their octane number (RON). Please adopt the following procedure if th e 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 petrol 98 RON can also be run on unleaded regular petrol 95 RON. This do es, however, result in a slight loss in performance. You can in exceptional circumstances also use unleaded regular petrol of 91 RON in the event that neither unleaded premium petrol of 98 RON nor 95 RON is available. Refuel as soon as possible with unleaded premium plus of 98 RON or unleaded premium petrol of 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 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 performa nce 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 171.
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 than that required 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 .
Fuel additives
You must not use fuel additives, so-ca lled “flow improvers” (petrol and similar products) in diesel fuel.
If the quality of the diesel fuel is p oor, it is then necessary to drain the fuel filter more often than stated in the Service schedule.
You can find information on refuelling ⇒page 171, “Refuelling”.
Caution
•Use a fuel which complies with the standard EN 590. Filling the tank even only once, which does not comply with the stan dard, can result in damage to the fuel system.
•Water which has collected in the fuel filter can result in engine problems.
NKO A05R 20 MR08.book Page 170 Wednesday, March 28, 2007 9:42 AM
Fuel171
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistancePraktikTechnical Data
•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.
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 be comes viscous as a result of paraffin separation.
It is therefore the case that DIN EN 590 prescribes diesel fuel class for certain periods of the year which can also be pu rchased 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. Škoda Service Partners and filling stations in the count ry 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.
Refuelling
Opening the fuel filler cap
– 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-clo ckwise and place the fuel filler cap
from above on the fuel filler flap ⇒fig. 153.
Closing fuel filler cap
– Screw on the cap by turning it to the right until it is heard to lock.
Fig. 152 Right rear side of the vehicle: Fuel filler flap
Fig. 153 Filler flap with cap unscrewed
NKO A05R 20 MR08.book Page 171 Wednesday, March 28, 2007 9:42 AM
