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- Anti-knock index must be 87 AKI or higher.
- Blend must contain not more than 15%
MTBE.
Seasonally adjusted gasoline
Many gasoline grades are blended to perform
especially well for winter or summer driving.
During seasonal change-over, we suggest that
you fill up at busy gas stat ions where the sea-
sonal adjustment is more likely to be made in
time.
(D
Note
- Fuels containing a high percentage of
ethanol such as ESO and E85 may only
be used in vehicles with flexible fuel en-
gines. Using high ethano l fuel in vehicles
not equipped with flexible fue l engines
can cause severe engine damage .
- Methanol fuels which do not meet these
requirements may cause corrosion and
damage to plastic and rubber compo-
nents in the fuel system.
- Do not use fuels that fail to meet the
specified criteria in this chapter.
- If you are unable to determine whether
or not a particular fuel blend meets the
specifications, ask your service station or
its fuel supplier.
- Do not use fuel for which the contents
cannot be identified.
- Fuel system damage and performance
problems resulting from the use of fuels
different from those specified are not
the respons ibility of Audi and are not
covered under the New Vehicle or the
Emission Control System Warranties.
- If you experience a loss of fuel economy
or driveability and performance prob-
lems due to the use of one of these fuel
blends, we recommend that you switch
to unblended fuel.
Fuel supply
and filling
your fuel tank
215
Ethanol fuel (Bio-ethanol)
Appli es to vehicles: w it h flex i ble fue l engine
You can recognize vehicles with a flexible fuel
engine by looking at the label on the inside of
the fuel filler flap .
Vehicles with flexible fuel engines may be op-
erated with bio-ethanol fuels such as E85
(85% ethanol and 15% gasoline) or with un-
leaded gasoline (91 AKI/ROZ 95) . The vehicle
may also be operated with a mixture of these
fuels.
Your fuel consumption will increase when us-
ing bio-ethanol fue ls due to the lower amount
of energy contained per unit volume in etha-
nol.
Warming up the flexible fuel engine in
low temperatures
Due to the chemical composition of bio-etha -
nol, a certain amount of fuel ends up in the
engine oil when driving short distances in very
low temperatures. This fue l evaporates again
when the engine is warmed up.
II
Please warm up engine.
If the driver message appears in the instru-
ment cluster disp lay, drive with a warm en-
gine to reduce the oil level.
(D
Note
- Never fill with methanol or with a higher
percentage of bio-ethanol than 85%
(E85). A higher percentage of bio-etha-
nol in the fuel can cause damage to the
engine or to the fue l system.
- If you use only E85, it is recommended
to fill the fue l tank complete ly with un-
leaded premium grade gaso line every
5,000 miles.
- If you experience starting, rough idle or
hesitation driveability problems, fill the
fuel tank comp letely with unleaded pre-
mium grade gasoline and drive it nor-
mally until the gasoline is used. See your
authorized Audi dealer if the problem
pers ists.
•
•
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