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Fuel filter microns school me pls

Discussion in '6.9L IH & 7.3L IDI Diesels' started by Jason1377, Oct 11, 2019 at 6:13 PM.

  1. Jason1377

    Jason1377 Supporting Member Supporting Member

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    Ok I have a pad style no bowl part number is 33617 says it's 12 microns cost before tax as Napa or O'Reily is $60 they have another one part number 33147 that is 14 microns as cost before tax is $47.99 at both stores. so my novice question is what's the big difference besides two microns and the cost before tax is the smaller one better or is the bigger micron better?

    I drive the truck most of the winter whenever it snows or gets icy it's needing a new filter the dash light comes on/stops me dead it has 3k miles on the current filter, trying to save cost since one takes 24 hours to come in the other is pick up at store right now.

    P.s thanks for the future schooling.
     
  2. DaveBen

    DaveBen Supporting Member Supporting Member

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    Microns are the metric size of the particle that the filter will not allow to pass. So the 12 micron filter is better than the 14 micron filter. We are talking extremely small and even smaller. I would get the 12 micron filter as it will keep smaller crap out of your fuel system.
     
    Jason1377 and D_Fresh361 like this.
  3. chris142

    chris142 Full Access Member

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    How often are you needing to replace the filter?
     
  4. Jason1377

    Jason1377 Supporting Member Supporting Member

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    Sorry late response as of right now my truck as only 3,000 miles one the fuel filter give or take a mile I honestly only change it.every winter or when the dash glows, i use white bottle of power service plus Howes anti gel in the fall as power service grey bottle mixed with it sea foam in spring/summer.

    Just trying to learn more while not spending alot at the the moment.
     
  5. chris142

    chris142 Full Access Member

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    Ford recommend you replace the filter every 60k. I do think that's excessive myself. I let mine go 20k.
     
  6. Kevin 007

    Kevin 007 Full-floater

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    The 6.9 filters were 6 micron, then the 7.3 style switched to 12. I think right around the 5 or 6 micron rating would be good for final filtration, and never did like that the 7.3's were so high. I usually rig up something else, usually a Racor of some sort to add some better filtration on the 7.3 trucks. SOOOO.....I would stay away from the 14 and use the 12 micron....and I would also recommend looking at something better when you have the opportunity.
    Our DB2 rotary injection pumps, are short lived enough as it is, so the way I see it, they need all the help they can get...do get a reasonably long service life out of them. Especially with this modern, ULSD junk that we are getting these days.
     
  7. Thewespaul

    Thewespaul Supporting Vendor Supporting Member

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    60k?? The filter interval is 15k not 60, I change them every oil change.
     
  8. Kevin 007

    Kevin 007 Full-floater

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    I recall reading somewhere, that the filters become most efficient at filtering once they have reached a certain saturation point with particulate. Say after a couple thousand clicks or so. Makes sense to me, but that was just hear say on something I was reading somewhere
     
  9. dgr

    dgr Full Access Member

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    No way I'd pay $60 for a fuel filter unless I was broke down. I'd go to fleet filter website and buy 2 for that price and put one in a ziplock behind the seat.
     
  10. Ayla

    Ayla Registered User

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    get a aftermarket cat filter kit. Comes off your fuel filter housing and remote mounts and uses the cat filter. not sure of the micron size, but way better filtration. I use them on my cummins Dodge's. all 3 of them.
     
  11. Black dawg

    Black dawg Registered User

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    I usually convert my trucks to the 6.9 filter or better, and once a year has been plenty for a replacement interval......usually 15k.
     
  12. Jason1377

    Jason1377 Supporting Member Supporting Member

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    Can you post a picture of that style sir?
     

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