Seat toledo Owner's Manual page 148

TIPS AND MAINTENANCE
Driving i i n w w inter
When using summer Diesel trouble may
be experienced at temperatures below
0 °C because the fuel thickens due to wax
separation.
For this reason winter Diesel which is
more resistant to cold is sold during the
winter in some countries, and this works
correctly down to between –15 °C and
–22 °C approximately, depending on the
brand of fuel used.
The biodiesel available in countries with
different climactic conditions usually has
different temperature characteristics.
Technical Service Centres or service sta-
tions in each country can inform you of
the specific characteristics of the respec-
tive diesel.
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Filter p p reheating
The vehicle is fitted with a filter preheater.
This will ensure that the fuel system will
remain operational down to about –25 °C,
provided that winter Diesel which is cold
resistant down to –15 °C is used.
If, at temperatures below –25 °C the fuel
is waxed to such an extent that the engine
will not start it is sufficient to place the
vehicle in a warm enclosure for a while.
Fuel additives (anti-waxing agent), petrol
and similar fluids must not be mixed with
Diesel fuel.
FILLING THE TANK