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owners manual Seat Leon
owners manual Seat Leon - year of production: 2012 - Seat Leon III 3 owners manual EN
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from owners manual to the vehicle Seat Leon, year of production 2012:
Checking and refilling levels 247
● Only use fuel additives that have been approved by SEAT. Octane boost-
CAUTION
ing or anti-knock additives may contain metal additives that could seriously
damage the engine or the catalytic converter. These additives must not be● The vehicle is not designed for the use of biodiesel (FAME fuel). The fuel
used. system would be damaged if you used biodiesel.
● High engine speed and full throttle can damage the engine when using● Do not mix fuel additives, the so-called “thinners”, petrol or similar ad-
petrol with an octane rating lower than the correct grade for the engine.ditives with diesel fuel.
● If poor-quality diesel fuel is used, it may be necessary to drain the fuel
filter more frequently than is specified in the Service Plan. We recommend
Note
having this done by a specialised workshop. If water is allowed to collect in
● You may use petrol with a high octane number than the one recommen-
the filter, this can cause engine performance problems.
ded for your engine.
● In those countries where unleaded petrol is not available, you may refuel
with a fuel with a low lead content.
Natural gas
Natural gas
Diesel Fuel
Natural gas, in addition to others, can be in compressed or liquid form.
Please note the information on the inside of the fuel tank
Liquefied natural gas (LNG) is the result of heavy cooling of natural gas.
flap.
Therefore its volume is considerably reduced compared with compressed
natural gas (CNG). In vehicles with a natural gas engine, liquefied natural
We recommend the use of Diesel fuel which complies to European standard
gas cannot be directly refilled, given that the gas would expand excessively
EN 590. If diesel fuel which meets European standard EN 590 is not availa-
in the vehicle gas tank.
ble, the Cetane number (CZ) must, at minimum, be 51. If the engine is
equipped with a particulate filter, the sulphur content of the fuel must beTherefore, vehicles with a natural gas engine must only be refuelled using
below 50 parts per million. compressed natural gas ⇒ .
Winter-grade diesel Natural gas quality and consumption
Summer fuel becomes thicker in winter and it is more difficult to start theNatural gas is divided into the groups H and L depending on its quality.
engine. For this reason petrol stations in some countries also offer winter
Gas type H has a superior heating power and inferior nitrogen and carbon
diesel with improved fluidity when cold.
dioxide content than type L. The higher the heating power of the natural
gas, the lower the consumption will be.
However, the heating power and the proportion of nitrogen and carbon di-
oxide can fluctuate within the quality groups. Therefore, vehicle consump-
tion can also vary, even when using one type of gas only.
Safety First Operating instructions Practical Tips Technical specifications
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Seat Leon III 3 owners manual
pages 246 - 252
Seat Leon III 3 owners manual
page 249 / 339
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