Do any of you use dual
oil filters? How are they connected, one filter feeds the other one? Do you use the same filter on both, or does the setup require a "coarse" and a "fine" filter to work properly.
Lastly, heve you ever cut open the filters to see what was trapped by each.
Very curious to know if they have any advantage over a single filter. Especially with the frequent
oil changes most do.
John