Kris01 wrote on 12/26/16 at 14:55:18:piedmontbuckeye wrote on 12/26/16 at 03:59:36:That same sheet of paper folded different ways doesn't have the same "exposure" to filtering! Did you ever take a physics class?
Ok, this is starting to lead into an argument. I'll make one point and then I'm done with this topic.
The pleated element in the filter housing is exposed to the oil. ALL of it! The entire thing filters. Area is area no matter how many times you fold or bend the same sheet.
NOT true!! If it overlaps, it may be exposed to oil, but ONLY the filtering is done by one layer, the first layer the oil goes through! Think for example if you simply wound it up into a circle and it was coiled 3 or 4 layers deep. Would you get the same filtering as if it were only coiled with no overlap? I've been through all this when I was a purchasing agent for the plastics factory purchasing commercially used filters - from some of the same companies that make auto filters!
I agree with your second statement, however, if one changes oil regularly, and uses a good brand name filter each time, there will be nothing to worry about.
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