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There is a difference between the Research Octane Number (RON) recommendation of 91 (in my Owner's manual printed July 2004) and the AKI of 87 (the number shown on the pumps that we all use at the local station).
Can anyone reproduce where it states that premium fuel is recommended? I'm not doubting, and I'll go search the archives now, but I can't imagine that premium would be required for this vehicle, engine, and application.
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