The BD Blog

Expert technical insights, high performance engineering deep dives, and real-world diesel solutions straight from the BD R&D lab.


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5.9 Cummins Engine for Sale: Buyer’s Guide to Long Blocks vs Ready-Run Builds
Parts for Cummins: The Ultimate 5.9/6.7 Upgrade Paths for Tow, Daily & Power
CP3 Pump 101: Reliability, Upgrades & Tuning Tips for Cummins & Duramax
Diesel Gearing 101: Axle Ratios, Tire Size & Lockup for Towing
EGR, DPF & SCR 101: How Modern Diesel Emissions Work (and Last)
Engine Hours vs. Miles: The Right Way to Service a Diesel
Safe Towing Temperatures: EGT, Transmission, Coolant & Oil Limits
Diesel Smoke Colors Decoded: Black, Blue & White Symptoms Explained
Diesel Fuel Filters & Water Separation: Micron Ratings, Additives & Winter Survival
Diesel Hard Starts Solved: Batteries, Glow/Grid Heaters & High Idle
DPF Regeneration Explained: Passive, Active & Parked + Real Fixes
Does DEF Freeze? Winter Storage, Quality Testing & Sensor Headaches Explained
Best Diesel Winter Additives: Anti-Gel, Water Control, Cetane & Exact Dosages
Precision Plus 6.7L Cummins Long Block (2021–2024) | BD Diesel
BD Diesel Exhaust Manifolds: Cummins, Power Stroke, Duramax and more