Seat Mii 2019 Owner's Manual page 189

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.
1) This motor is only available in some markets.
Checking and refilling levels
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 187,
Ethanol fuel
3 Applies to vehicles: with Totalflex engine
You can recognise vehicles with Totalflex en-
1)
gines 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
Note
SEAT recommends filling the tank exclu-
sively with petrol every 10,000 km to de-
crease impurities that using E100 ethanol
fuel might have left in the engine.
›››
page 186, Type of pet-
Natural gas
3 Applies to vehicles: with a natural gas engine
Natural gas can be compressed or in liquid
form, addition to others.
Use of compressed natural gas (CNG)
Vehicles with a natural gas engine must only
be working with CNG (Compressed Natural
Gas CNG ), or with a mixture of biomethane
if it complies with Regulation EN 16723-2.
Do not use fuels such as liquefied natural gas
(Liquefied Natural Gas), liquified petroleum
gas (LPG = Liquefied Petroleum G) or hy-
thane (hydrogen mixed with methane)
Therefore, vehicles with a natural gas engine
must only be refuelled using compressed
natural gas (CNG).
Natural gas quality and consumption
Natural gas is divided into the groups H and L
depending on its quality.
Gas type H has a superior heating power and
inferior nitrogen and carbon dioxide content
than type L. The higher the heating power of
the natural gas, the lower the consumption
will be.
›››
.
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