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Fuel specifications – BMW Z4 sDrive35i 2010 User Manual

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Fuel specifications

Do not fill the tank with leaded fuel as this
would cause permanent damage to the

catalytic converter.
Do not fill the tank with E85, i.e., fuel containing
85% ethanol, nor with FlexFuel. Otherwise,
the engine and fuel supply system will be
damaged.

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Required fuel

Super Premium Gasoline/AKI 91

This gasoline is highly recommended.
However, you may also use gasoline with less
AKI. The minimum AKI Rating is:

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Z4 sDrive30i: 87

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Z4 sDrive35i: 89

If you use gasoline with this minimum AKI Rat-
ing, the engine may produce knocking sounds
when starting at high outside temperatures.
This has no effect on the engine life.

Do not use any gasoline below the speci-
fied minimum fuel grade. Otherwise, the

engine could be damaged.

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Use high-quality brands

Field experience has indicated significant dif-
ferences in fuel quality: volatility, composition,
additives, etc., among gasolines offered for sale
in the United States and Canada. Fuels contain-
ing up to and including 10% ethanol or other
oxygenates with up to 2.8% oxygen by weight,
that is, 15% MTBE or 3% methanol plus an
equivalent amount of co-solvent, will not void
the applicable warranties with respect to
defects in materials or workmanship.

The use of poor-quality fuels may result in
driveability, starting and stalling problems

especially under certain environmental condi-
tions such as high ambient temperature and
high altitude.
Should you encounter driveability problems
which you suspect could be related to the fuel
you are using, we recommend that you respond
by switching to a recognized high-quality brand
such as gasoline that is advertised as Top Tier
Detergent Gasoline.
Failure to comply with these recommendations
may also result in unscheduled maintenance.

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Online Edition for Part no. 01 41 2 602 883 - © 08/09 BMW AG

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