How-To: Bypass Filtration Install Overview Bypass filtration refers to a filtration setup where a secondary filter that provides much finer filtration efficiency is installed to maintain the quality of oil for longer oil duration periods in addition to reducing (if not entirely eliminating)...

Overview The purpose of bypass filtration is to reduce engine wear and extend oil drain intervals by keeping the oil cleaner than the standard full-flow filter (the one you usually replace during an oil change) is capable of. The How-To tutorial for installation can be found here...

In case none of you have ever heard of bypass filtration, it is very common with semi trucks, diesel pickup trucks, and high-mileage courier trucks and vans. The system consists of an additional filter with oil lines that is hooked up to the vehicle usually upstream of the full-flow oil filter...