Here, we're breaking down the aspects of the Amsoil Dual Bypass Oil Filter: what they do, how they do it, and how they can benefit your 4x4 truck on the ohv trail. More inside Four Wheeler Magazine.

We opted for the BMK-32 single-bypass kit. Amsoil offers a dual-bypass kit, BMK-27, which moves the full-flow filter off of the engine and onto the head unit that also houses the bypass filter.

Glass-enhanced media in WIX oil filters offers greater efficiency, capturing more 10 to 12 micron sized particles than other cellulose/synthetic blend medias.” Both oil filters look similar, but not ...