Schultz
Gold Member
The pore size media testing that I've done on oil filters indicate that you could probably leave the filter on a good running engine for several oil changes. I wouldn't doubt if you could leave it on for 50k+ miles. The pore sizes in stock filters are not that fine, nominal pore size in a motorcraft filter is around 50µm. I don't think a good running engine would ever plug it, if it did you may have bigger problems.
If you want real filtration then you have to go to bypass filtration. AMSoil is one of the many good suppliers of these.
If you want real filtration then you have to go to bypass filtration. AMSoil is one of the many good suppliers of these.