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Premium Fuel

  • 1999
  • 911 Carrera
48 000
Fuel System
Essex Junction, 

In Vermont ethanol premium fuel is readily available at 91 octane. Is this an acceptable alternative to 93 octane with 10 percent ethanol?

I recently bought the car in Nashville, TN. where the previous owner ran 93 octane as ethanol free is not available there.

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