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GMC
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1989
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Forward Control 6.2 J, Standard
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Repair and Diagnosis (Single Page)
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Engine Performance
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Adjustment
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Tune-Up - Diesel
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Specifications
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Service Intervals
Service Intervals
REPLACEMENT INTERVALS
Component
Interval (Miles)
Air Cleaner Element
Light Duty Emissions
30,000
Heavy Duty Emissions
15,000
Coolant
30,000
Oil & Filter
5000