your oil filter preference

[911monty]

[QUOTE=Perfectlap;461288]

Originally Posted by 911monty

Why not both sides of the filter?

It would seem that even dispersion of the metal would be better for oil flow resulting in more efficient filtration rather than crowding one side of the filter with the accumulated metal.
Does better flow equal better filtration?

OH BOY!! As Topless would say it's Physics!

There are 2 types of flow, laminar and turbulent. Laminar flow as regarding an oil filter

would be the flow through a brand new filter where the entire media is being utilized

resulting in minimum velocity through the media and filter. This would allow maximum

retention time in the canister allowing a single magnet maximum time to attract the

ferrous particles. Turbulent flow would be the fluid flow as the media has become laden

with particulates , resulting in very high fluid velocity through the remaining media just

prior to plugging off entirely. This condition would most require the dual magnets. Since

I do not follow the 15k mile oil change (can you imagine the filter condition) and change

my oil around 4.5k, my thought is 1 magnet should be sufficient. However dual magnets

would certainly offer max protection. YMMV