Heavy Duty Vehicles

NOTE: Applicable to Heavy Duty vehicles only, (GVW 8501 lbs and over).


Emission Component

EGR - Check Valve Operation & Clean EGR Passages every 60,000 miles
Crankcase Inlet Air Filter - Clean every 24,000 miles
Engine Air Filter - Replace every 24,000 miles
Oxygen Sensor - Replace every 80,000 miles
PCV Valve - Replace every 60,000 miles
Vacuum Operated Emission System Components -
Inspect & Replace if Necessary every 54,000 miles