Operation CHARM
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GMC Truck
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1998
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S15/T15 Sonoma P/U 4WD V6-4.3L VIN W
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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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Fuel
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Specifications
Fuel: Specifications
Octane Requirement
Octane Required
87 Octane or Higher