LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> GMC >> 1986 >> Forward Control 7.4 W, Standard >> Repair and Diagnosis >> Engine Performance >> Adjustment >> Tune-Up - V8 >> Specifications >> Service Intervals
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Service Intervals

REPLACEMENT INTERVALS

Components Intervals (Miles)
Air Filter 30,000
Oil Filter
Heavy Duty 3000
Light Duty 7500
PCV Valve & Filter 30,000
Spark Plugs 30,000
scientia non olet · About LEMON Manuals