LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> GMC >> 1994 >> Forward Control 7.4 N >> Repair and Diagnosis >> Transmission >> Manual Trans >> Servicing - M/T >> Lubrication >> Service Intervals >> Notes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Service Intervals: Notes

NOTE: There are 2 light truck emission control standard classifications: Light Duty and Heavy Duty. Light Duty refers to vehicles weighing up to 8500 lbs. (GVW); Heavy Duty refers to vehicles weighing over 8500 lbs. (GVW).