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LESSON 3: POWERTRAIN
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New premium fuel calibration (Navigator).
– The aggressive spark and fuel programming requires 91 octane (or higher) fuel for maximum performance.
Expedition requires 87 octane fuel for optimal performance.
NOTE: Refer to the Workshop Manual for diagnostic and service procedures for these items.
2005 Expedition/Navigator New Model Technician Training 02-SEP-04 3-37