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Home › GMC › 1981 › Magnavan Automatic Trans, Trans Mfr CD 475/M40 › Repair and Diagnosis › Engine Performance › Tune-Up › Tune-Up - V8 › General Servicing › Replacement Intervals

Replacement Intervals

Component Interval (Miles)
Oil Filter 15, 000
Fuel Filter 15, 000
PCV Filter & Valve 15, 000
Air Filter 30, 000
Spark Plugs 30, 000
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