BMW X5 - Manual (Page 27)

25 n
Overview
Controls
Maintenance
Repairs
Data
Index
Fuel specifications
The engine uses lead-free fuel only.
Required fuel:
> Premium Unleaded Gasoline,
min. 91 AKI.
AKI = Anti Knock Index
Do not use leaded fuels. The use
of leaded fuels will cause perma-
nent damage to the system's oxygen
sensor and the catalytic converter.
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