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Porsche
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1989
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928 CS V8-4957cc 5.0L
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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
FUEL
Type
Premium unleaded
Octane (R + M / 2)
[1]
90
Octane (RON)
95
Octane (MON)
85
[1]
Standard for U.S.A.