Fuel specifications

Gasoline engine: required fuel

Do not use fuels that are labeled at the fuel pump as containing metals.

metal additives Only refuel with lead-free gasoline without metal additives Do not refuel with leaded gasoline or gasoline with metal additives, e. g., manganese or iron; otherwise, the catalytic converter and other components will be permanently damaged.◀

Do not refuel with E85, i.e., fuel with an 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 system.◀

Super Premium Gasoline/AKI 91

This gasoline is highly recommended.

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

▷ BMW X5: 87
▷ BMW X6: 89

If you use gasoline with this minimum AKI Rating, the engine may produce knocking sounds when starting at high outside temperatures.

This has no affect on the engine life.

Do not use any gasoline below the minimum Minimum fuel grade
Do not use any gasoline below the minimum specified fuel grade; otherwise, engine damage may occur.◀

See also:

Ride & Handling
One of my main criticisms of the regular X5, which was redesigned for the 2007 model year, is its regular suspension doesn't offer the balance between ride comfort and handling prowess that I've c ...

Important features in the engine compartment
Important features in the engine compartment 1 Jump-starting, negative terminal 2 Vehicle identification number 3 Washer fluid reservoir 4 Jump-starting, positive terminal 5 Engine compartment ...

Resuming the original route
If the route section should no longer be bypassed: 1. "Navigation" 2. "Route information" 3. "New route for:" 4. "Remove blocking" ...