GHG17 DD Medium Duty Operators Manual All information subject to change without notice. 67 DDC-SVC-MAN-0192 Copyright © 2017 DETROIT DIESEL CORPORATION DD8:
Severe Service Maintenance Intervals GHG17 with ULSD Fuel GHG17 Using DFS 93K222(CK-4) or 93K223(FA-4) Approved Oils Fuel Filters (frame and engine) Replace every 45,000 miles (72,000 km) (1,500 hrs) (12 months)* Valve Lash Adjustment Adjust every 90,000 miles (145,000 km) (3,000 hrs) (24 months)* Belts Inspect every 45,000 miles (72,000 km) (1,500 hrs) (12 months)* Replace every 135,000 miles (217,000 km) (4,500 hrs) (36 months)* Air System Inspect every 45,000 miles (72,000 km) (1,500 hrs) (12 months)* Air Cleaner Refer to vehicle maintenance procedures Exhaust System Inspect every 45,000 miles (72,000 km) (1,500 hrs) (12 months)* Aftertreatment Devices Inspect external hardware and connections every 6 months or at oil change intervals.* Diesel Particulate Filter A Check Engine Light will illuminate when ash requires removal.
Normal DPF ash clean interval is every 150,000 miles (241,000 km) (5,000 hrs)* Detroit DPF Cleaning Process (Liquid Cleaning)** DEF Pump Filter Replace every 500,000 miles (805,000 km) (10,000 hrs) (3 years)* Air Compressor Inspect every 45,000 miles (72,000 km) (1,500 hrs) (12 months)* *Whichever comes first. **Detroit highly recommends replacing the DPF with a Detroit™ genuine DPF to ensure maximum replacement life. • Currently, only Detroit™ Fuel Filter/Water Separator & Davco 245 or Racor 6600 are the only frame-mounted filtration systems compatible for Detroit™ Engines. • Refer to "Routine Preventive Maintenance" for a description of all items.