Seat Leon Owner's Manual page 289

1)
(E10) . The types of petrol are differentiated
by using the octane numbers (RON) or via
the anti-knock index (AKI).
Super unleaded petrol 95 octane petrol or
normal 91 octane petrol at least
We recommend refuelling with super 95 oc-
tane petrol (91 AKI). If not available, normal 91
octane petrol (87 AKI) (with a slight power
loss) may be used.
Super unleaded petrol, 95 octanes at
least
You should use super 95 octane petrol (91
AKI) at least.
If super is not available, if necessary, use nor-
mal 91 octane petrol (87 AKI). In this case only
use moderate engine speeds and a light
throttle. Refuel with super as soon as possi-
ble.
Unleaded super plus 98 octane petrol or
super 95 octane petrol at least
We recommend refuelling with super plus 98
octane petrol (93 AKI). If not available: super
95 octane petrol (91 AKI) (with a slight power
loss).
1) Follow the regulations of the country you are
driving in.
2) This motor is only available in some markets.
Checking and refilling levels
If super is not available, if necessary, use nor-
mal 91 octane petrol (87 AKI). In this case only
use moderate engine speeds and a light
throttle. Refuel with super as soon as possi-
ble.
CAUTION
Fuels high percentage of ethanol, e.g.
●
E30 - E100 button must not be used. The
fuel system would be damaged. Exception:
›››
vehicles with Totalflex engine
Ethanol fuel.
A single refuelling with leaded fuel or
●
other metal additives entails a permanent
deterioration of the effectiveness of the
catalytic converter.
Only use fuel additives that have been
●
approved by SEAT. The products that con-
tain substances to increase the octane rat-
ing or decrease knocking may contain met-
al additives that damage the engine and
catalytic converter. This type of products
must not be used.
Do not use fuels shown in the pump as
●
containing metals. LRP (lead replacement
petrol) fuels contain high concentrations of
metal additives. Risk of engine damage!
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.
Note
Fuel with an octane rating higher than the
●
one required by the engine can be used.
In countries in which there is no sulphur-
●
free fuel, it is also allowed to use low sul-
phur content fuel.
page 287,
Ethanol fuel
3 Applies to: vehicles with Totalflex engines
You can recognise vehicles with Totalflex en-
gines 2) by label on the fuel tank lid with with
the marking "Petrol/ethanol".
Vehicles with Totalflex engine can run with
unleaded petrol (95 octane / 91 AKI) accord-
ing to ANP No. 57 and with fuels with any high
percentage of ethanol. The vehicle is refuel-
led in the same way as petrol refuelling.
Also consider that
rol
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page 286, Type of pet-
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287