BMW Automobile 525i Owner's Manual
169
Fuel specifications
The engine uses lead-free gasoline only.
Required fuel:
Premium Unleaded Gasoline,
min. 91 AKI.
AKI = Anti Knock Index.
min. 91 AKI.
AKI = Anti Knock Index.
Do not use leaded fuels. The use of
leaded fuels will cause permanent
leaded fuels will cause permanent
damage to the system's oxygen sensor and
the catalytic converter.
the catalytic converter.
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