D45

Has anyone seen or used AFE's new D2 Pro Guard Fuel Filters?

D45

FYI: These are rated to filter at 4 MICRONS!!!!!!

MikeyB

Is that 4 microns Nominal or Absolute?

MikeyB

D45

Hmmmm, what is the difference........

BothellDiesel

I've seen all their filters for Ford and Chevy, but not ours yet. I believe they are made by Champ.

D45

Anyone? What do these mean?

MikeyB

Quickie rundown.....
http://doultonusa.com/HTML%20pages/a...ons_rating.htm

So if it's a 4 micron Nominal it could be a 8-10 micron Absolute, like some of the current filters on the market. IE, 10 micron Fleetguard.

MikeyB

djbikeman

An absolute pore size rating specifies the pore size at which a challenge organism of a particular size will be retained with 100% efficiency under strictly defined test conditions. Among the conditions that must be specified are: test organism (or particle size), challenge pressure, concentration and detection method used to identify the contaminant.

A nominal pore size rating describes the ability of the filter media to retain the majority of particulate at (60 - 98%) the rated pore size. Process conditions such as operating pressure, concentration of contaminant, etc., have a significant effect on the retention efficiency of the filters.

Please don't assume I know anything about this. I just know how to Google.