When my light comes on, I go get it changed. About 7-8k depending on driving vs idle time. Fuel filters are every 10K on the Cat and 15 on the AirDog. Changed injectors almost 50K ago and rates are good and no issues.
Justin 2001 LB7 Silverado 2500HD LT CCSB 4x4.
EFI Live by Idaho Rob, 425K+ and rolling, Undercover Bed Cover, Vortex spray in bed liner, Westin steps, Bilstein Shocks, Road Master Active Suspension, M/A Pump Rub Kit, PPE Trans Cooler, MBRP 5" Exhaust, Edge Insight CTS, K&N drop in filter, AirDog II 100 w/ CAT 751, LLY FF Housing w/ Racor, Running on LMM Blacked out Wheels & Michelin LTX M/S2 tires.
ADRENALINE TRUCK PERFORMANCE
Lincoln Diesel Specialties