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DPF cleaning, "WG" rating, etc

Discussion in 'Trucks [ Eighteen Wheelers ]' started by fooomanchu, Jan 17, 2013.

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  1. Jan 17, 2013 #1
    fooomanchu

    fooomanchu Light Load Member

    63
    8
    Oct 19, 2012
    Urbana IL
    0
    I recently had my dpf removed and cleaned.... Apparently there is a rating they use for how dirty or clean it is. Mine was a 3.5 dirty and then a 2.5 after they cleaned it. I tried to find info about this number on the web but didn't have any luck. Can someone explain this or direct me to where I can learn more about this number and the process in general? I'd like to be able to know when I should get the dpf cleaned and when I need to get it replaced.

    Also it seems that the Freightliner filters are about $800 while the Cummins filters are $1800... I'd like to know if this info is accurate and if so, why the huge difference in price! :)
     
    fooomanchu, Jan 17, 2013
    fooomanchu, Jan 17, 2013
    #1
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  3. Jan 17, 2013 #2
    dloving8915

    dloving8915 Light Load Member

    213
    68
    Sep 18, 2010
    Dallas, Texas
    0
    We just had the DPF cleaned as well. Not sure what the WG is I believe it is weight. The shop in Ca weighed the filter befor the baked/cleaned it and after. My guess would be that they were able to remove a pound of ash from your filter! We priced a new filter from Donaldson It was $1000 new for our 09 Peterbilt with a cummins.




     
    dloving8915, Jan 17, 2013
    dloving8915, Jan 17, 2013
    #2
    fooomanchu Thanks this.
  4. Jan 17, 2013 #3
    Heavyd

    Heavyd Road Train Member

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    Feb 4, 2009
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    WG is "water gauge", or difference in pressure across the filter in inches of water. The number is basically how plugged the dpf is. They will measure this before and after the cleaning procedure to see if the dpf is any good to reuse. All dpf models are different, but generally they are all in the same ballpark for readings. New have a wg of about 2.25, ok to reuse about 2.5 to 3. Over 3.5 to 4 is plugged.
    There is always price differences going from manufacturer direct and other suppliers. 3rd party parts suppliers are producing DPFs now. Make sure you shop around if you need a replacement.
    Check out this link from FSX for the wg ratings.
    http://www.fsxinc.com/site1/BaseLinesNScience/CurrentBL.html
     
    Heavyd, Jan 17, 2013
    Heavyd, Jan 17, 2013
    #3
    25(2)+2 and fooomanchu Thank this.
  5. Jan 17, 2013 #4
    fooomanchu

    fooomanchu Light Load Member

    63
    8
    Oct 19, 2012
    Urbana IL
    0
    Hey thanks. Yeah it looks like we did the smart thing cleaning as opposed to replacing....I was told by a few people NEVER clean, always replace, but the tone of their voice sounded kinda shifty and I went with my instinct to clean! I'd check my paperwork if I were you and see if they gave you a wg rating before and after just for reference. Thanks for help!! :)
     
    fooomanchu, Jan 17, 2013
    fooomanchu, Jan 17, 2013
    #4
  7. Jan 17, 2013 #5
    fooomanchu

    fooomanchu Light Load Member

    63
    8
    Oct 19, 2012
    Urbana IL
    0

    Oh ok GREAT, this is what I was wondering.... The numbers were confusing to me because I would have expected 1 to be a good number and 5 to be bad but it is obviously not that simple! I checked out the link you gave and it was very helpful...thanks a lot!! :) Tell mr. t i said hello
     
    fooomanchu, Jan 17, 2013
    fooomanchu, Jan 17, 2013
    #5
    Heavyd Thanks this.
  8. Jan 17, 2013 #6
    Heavyd

    Heavyd Road Train Member

    7,752
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    Feb 4, 2009
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    I pity the foo that doesn't clean his DPF, sucka!
     
    Heavyd, Jan 17, 2013
    Heavyd, Jan 17, 2013
    #6
    fooomanchu Thanks this.
  9. Jan 17, 2013 #7
    Cat sdp

    Cat sdp . .

    20,857
    72,021
    Apr 8, 2012
    Orion's Belt
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    Comments like this show that you have no idea how much pain the manufacturers and their agents the dealerships have inflicted on us. Which is why I'm on your back a lot.

    The only reason we are a ( sucka) is because we Bought these pos!

    Tell the truth, these trucks are the best thing that ever happened to dealership service depts. Right.
     
    Cat sdp, Jan 17, 2013
    Cat sdp, Jan 17, 2013
    #7
    fooomanchu Thanks this.
  10. Jan 17, 2013 #8
    fooomanchu

    fooomanchu Light Load Member

    63
    8
    Oct 19, 2012
    Urbana IL
    0
    hahahahahahahahahaha!!!! :)
     
    fooomanchu, Jan 17, 2013
    fooomanchu, Jan 17, 2013
    #8
  11. Jan 17, 2013 #9
    fooomanchu

    fooomanchu Light Load Member

    63
    8
    Oct 19, 2012
    Urbana IL
    0
    I think he was kinda just goofing around in response to my "Mr T" comment, which was a response to his A-Team userpic :)
     
    fooomanchu, Jan 17, 2013
    fooomanchu, Jan 17, 2013
    #9
    Cat sdp Thanks this.
  12. Jan 17, 2013 #10
    Cat sdp

    Cat sdp . .

    20,857
    72,021
    Apr 8, 2012
    Orion's Belt
    0
    Never watched the show. Sorry for jackin on your thread. Hd helps a lot of guys on here, but we've had a few go rounds on this issue........ I over reacted as usual .
     
    Cat sdp, Jan 17, 2013
    Cat sdp, Jan 17, 2013
    #10
    fooomanchu Thanks this.
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