Operation CHARM
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Porsche
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2005
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Boxster (987) F6-2.7L
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Repair and Diagnosis
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Powertrain Management
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Fuel Delivery and Air Induction
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Description and Operation
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Fuel
Fuel
Fuel
Concerning power and fuel consumption, the engines have been designed ideally for unleaded fuel 93 octane ((R+M)/2). When fuel with RON 90 octane ((R+M)/2) is used, the
ignition timing
is automatically retarded by the knock control.