Fuel, Fuel quality – BMW Z4 sDrive35is 2011 User Manual
Page 187
Fuel
Fuel quality
For the best fuel economy, the gasoline should
be sulfur-free or very low in sulfur content.
Refuel with unleaded fuel only
Do not use leaded fuel as this would per‐
manently damage the catalytic converter.◀
Fuels with a maximum ethanol content of 10 %,
i.e., E10, may be used for refueling.
Do not refuel with ethanol E85
Do not refuel with E85, i.e., fuel with an
ethanol content of 85 %, or with Flex Fuel, as this
would damage the engine and fuel supply sys‐
tem.◀
Gasoline quality
The engine is knock controlled. Therefore, you
can refuel with different gasoline qualities.
It is recommended that you refuel with Super
unleaded, 95 RON.
Unleaded fuel grades with 91 RON and higher
are permissible.
Minimum fuel grade
Do not use gasoline below 91 RON as this
may damage the engine.◀
Refuel with unleaded fuel only
Do not use leaded fuel as this would per‐
manently damage the catalytic converter.◀
Do not refuel with ethanol
Do not refuel with E85, i.e., fuel with an
ethanol content of 85 %, or with Flex Fuel, as this
would damage the engine and fuel supply sys‐
tem.◀
Required fuel
Super Premium Gasoline/AKI 91
This gasoline is highly recommended.
Gasoline with lower AKI
However, you may also use gasoline with less
AKI.
The minimum AKI Rating is:
▷
Z4 sDrive30i: 87
▷
Z4 sDrive35i: 89
▷
Z4 sDrive35is: 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.
Minimum fuel grade
Do not use any gasoline below the mini‐
mum specified fuel grade; otherwise, engine
damage may occur.◀
Use high-quality brands
Field experience has indicated significant differ‐
ences in fuel quality: volatility, composition, ad‐
ditives, etc., among gasolines offered for sale in
the United States and Canada.
Fuels containing up to and including 10 % etha‐
nol 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.
Minimum fuel grade
The use of poor-quality fuels may result in
driveability, starting and stalling problems es‐
pecially under certain environmental conditions
such as high ambient temperature and high al‐
titude.
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.
Seite 187
187
Online Edition for Part no. 01 41 2 604 231 - 03 10 500