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Advice
Petrol
P
etr
o
l types
The correct petrol types are listed on a sticker
inside the f
uel tank flap.
Only unleaded petrol conforming to standard
DIN EN 228 may be used for vehicles with
catalytic converters (EN = “European Stand-
ard”).
Types of petrol differ from each other accord-
ing to the octane rating, for example: 91, 95,
98 RON (RON = “Research Octane Number”,
unit for determining the knock resistance of
petrol). You may use petrol with a higher oc-
tane number than the one recommended for
your engine. However, this has no advantage
in terms of fuel consumption and engine
power.
CAUTION
●
Even one t
ankful of leaded fuel would per-
manently impair the efficiency of the catalyt-
ic converter.
●
High engine speed and full throttle can
damage the engine when using petrol with an
octane rating lower than the correct grade for
the engine.
For the sake of the environment
Just one full tank of leaded fuel would seri-
ously
impair the efficiency of the catalytic
converter.
Additives for petrol
The quality of the fuel influences the behav-
iour, pow
er and service life of the engine.
This is why the petrol you use should carry
suitable additives already included by the
petrol industry, free of metals. These addi-
tives will help to prevent corrosion, keep the
fuel system clean and prevent deposits from
building up in the engine.
If good-quality petrol with metal-free addi-
tives is not available or engine problems
arise, the necessary additives must be added
when refuelling.
Not all petrol additives have been shown to
be effective. The use of unsuitable petrol ad-
ditives may cause significant damage to the
engine and the catalytic converter. Metal ad-
ditives should never be used. Metal additives
may also be contained in petrol additives for
improving anti-detonation ratings or octane
ratings.
SEAT recommends “genuine Volkswagen
Group fuel
additives for petrol engines”.
These additives can be bought at SEAT deal-
ers, where information on how to use them
can also be obtained.
CAUTION
Do not refuel if the filler indicates that the
fuel c
ontains metal. LRP (lead replacement
petrol) fuels contain high concentrations of
metal additives. Using them may damage the
engine!
Diesel
Die
sel
Diesel fuel mu
s
t
conform to DIN EN 590 (EN =
“European Standard”). It must have a cetane
number (CN) of at least 51. The cetane num-
ber indicates the ignition quality of the diesel
fuel.
Notes on refuelling
›››
page 199.
Water in the fuel filter
1)
If your vehicle has a diesel engine and is
equipped with a fuel filter with a water sepa-
rator, the instrument panel may display the
following warning:
1)
Depending on the market.
200
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