What is your question?
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What is your question?
75K miles. Just bought this car. Engine knocks/pings - not a lot, but is noticable. I do use 91 octane - supect the previous owner used 87 octane.

1 Reply
Minis and BMW like using 98 octane, but if that is all that is available in your area, then some injector cleaner or a cylinder carbon clean might help. If pinging continues, have the a BMW dealer or your local mechanic check faults, possibly a faulty bypass valve or sensor. Your local mechanic can be found in the "find a shop"tab above. Goodluck