Answer
Oct 24, 2025 - 03:00 PM
A bypass oil filter, such as the Sinister Diesel Bypass Oil Filter System for 2007.5-2012 Dodge Cummins 6.7L, works by diverting a small portion of the engine’s oil flow through a secondary, ultra-fine filter before returning it to the sump. This specialized filter removes much smaller contaminants than the main filter, helping to keep the oil cleaner for longer. While it only filters a fraction of the oil at a time, over time it significantly improves overall oil cleanliness and engine longevity.
