BMW 528I User Manual download pdf (Page 29)

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Fuel specifications Tire inflation pressure

Use unleaded gasoline only.

Recommended 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

(87 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 an 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 converter.<

AKI = Anti Knock Index

The inflation pressures are indicated on

a sticker 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

pages).

For vehicles with Tire Pressure Control

(RDC)

*:

After a correction of the tire inflation

pressure, reactivate the system. Refer

to page 92.

390de351

Check tire inflation pressures reg-

ularly – at least every two weeks

and before beginning a longer trip.

Incorrect tire pressure can lead to tire

damage and accidents.

Check the inflation pressure of the

spare tire also. Inflate the spare tire to

the highest inflation of any tire on your

vehicle.<

Comply with tire approval

specifications

The inflation pressures in the table

apply to tires from BMW approved

manufacturers. Your BMW center is

familiar with these pressures. Higher

pressures may be specified for tires

from other manufacturers. You will find

a list of approved tires beginning on

page 140.

Your vehicle is equipped with tires that

not only meet US standards, but also

European standards. We recommend

the exclusive use of BMW approved

tires.

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