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Home >> Mercury >> 1983 >> Marquis L6-200 3.3L VIN X 1-bbl >> Repair and Diagnosis >> Maintenance >> Service Intervals >> Severe Service >> 18000 MI or 28800 KM

18000 MI or 28800 KM

Clean
    Spark Plug
      Clean and check gap.
Check
    Idle Speed
Inspect
    Drive Belt
Replace
    Oil Filter, Engine
    Engine Oil

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