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Infiniti
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1990
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M30 V6-181 3.0L
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Repair and Diagnosis
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Powertrain Management
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Tune-up and Engine Performance Checks
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Spark Plug
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Service and Repair
Spark Plug: Service and Repair
Original equipment platinum-tipped
spark plugs
should be changed every 60,000 miles or 48 months, whichever occurs first.
Torque
spark plugs to 14-22 ft. lbs.