I still don't get the fascination with that graph (and assuming it is correct of course). I mean, filtering efficiency doesn't mean
if a filter will catch a particle, it means (statistically speaking)
when, right? Even a very low efficiency filter will eventually catch all particles, assuming the efficiency for a given size is greater than zero. And as the filter ages it will catch smaller and smaller particles.
And no one has ever posted any time information have they? Let's say an efficency is 50%, doesn't that mean in two passes it is 75%? How long does two passes through the filter take?
Or do I just not get it? That may be the case of course
Originally Posted By: ZeeOSix
I figure a filter that is 50% @ 20 microns is about equivalent to a filter doing 90~95% @ 40 microns ... a little worse than a Purolator L14610 for instance, which is 97.5% @ 40 microns.
The XP/Platinum isn't really any worse than the OEM Toyota filters, but it's still worse than OEM Honda filters at the 20 micron efficiency point.