Mini CLUBMAN Owner's Manual page 213

MOBILITY
Fuel
If drivability problems are encountered, we rec‐
ommend switching to a high quality gasoline
brand and a higher octane grade — AKI num‐
ber — for a few tank fills. To avoid harmful en‐
gine deposits, it is highly recommended to pur‐
chase gasoline from Top Tier retailers.
Failure to comply with these recommendations
may result in the need for unscheduled mainte‐
nance.◀
Recommended fuel grade
MINI recommends AKI 91.
John Cooper Works:
Refuel with this gasoline to achieve the rated
performance and consumption values.
Minimum fuel grade
MINI recommends AKI 89.
John Cooper Works:
If you use gasoline with this minimum AKI Rat‐
ing, the engine may produce knocking sounds
when starting at high external temperatures.
This has no effect on the engine life.
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