Handyman; I'm thinking. If you were to mount 2 filters in series, say a 3 micron first, then a 1 micron, basically a polisher, that seems like you'd get good filtration. Also, how about a separator ahead of the 3 micron? I think I might be getting too elaborate here, but I'm interested in this.

Also, a bypass filter? I'm not sure I follow you. If the bypass filter got plugged, wouldn't it tend to bypass dirty oil?

Remember, dilution is the solution to pollution. [img]/forums/images/icons/grin.gif[/img]