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#52: 10-15-2010, 01:56 PM
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Oil Filter Tests by river_rat on BITOG Forums

Japanese filters are sieves in my (admittedly limited) experience--Same with Denso.

I suspect Filtech makes excellent quality media--to order.
If the filter manufacturer specifies 80% efficient, they provide top notch 80% media.

NG/Wix...I pretty much ignore their (probably) outdated published betas.
The media looks to be in the efficiency range of a Purolator Classic/K&N/Mobil 1 class in every test, time after time. (with the exception of some media leak-by inconsistant results with three I had)
Also, looking at the media through the microscope, and measuring thickness, it looks very good and in-line with the filtrate results.
They are good filters.