Bmw Z4 sDrive35is 2011 User Manual download pdf (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.

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