BMW M5 Automobile User Manual


 
26n
Fuel specifications Tire inflation pressure
Use unleaded gasoline only.
Minimum octane rating: 91 AKI.
BMW engines are equipped with knock
sensors and will adapt automatically
to different octane ratings, provided
that the minimum octane requirement
(89 AKI) is met.
Fuels with higher octane ratings will
provide enhanced performance and
lower fuel consumption, while the use
of fuels with low octane ratings will
have the opposite effect.
Do not use leaded fuels. The use
of leaded fuels will cause perma-
nent damage to the system's oxygen
sensor and the catalytic convertor.<
AKI = Anti Knock Index
The inflation pressures are indicated on
a label attached to the B-pillar behind
the driver's door (visible with door
open).
Check tire pressures
All pressure specifications are indicated
in psi (kilopascal) for tires at ambient
temperature (refer also to the next
page).
Following a correction of the tire
inflation pressure, reactivate the
Tire Pressure Warning (RDW) system.
Refer to page 77.<
390de351
Check tire inflation pressures reg-
ularly – at least every two weeks
and before beginning a longer trip. In-
correct tire pressure can otherwise lead
to tire damage and accidents.<
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