Air Filter Study.

[Tryingit]

Not only isn't it easy. It's very expensive if your will to experiment. :-laf

 

[steved]

Steved,

THese filters are "DRY" filters... ... ... ... ... ... ... not oiled, so I don't know where you would get the oil into your turbo.



Amsoil recommends cleaning these filters every 25,000/1 year in "Normal" driving conditions, by vacuuming, or using 10-15 PSI shop air... ... ... ... ... ... ... ... ... ..... not HIGH PRESSURE compressed air.



This same technology is being used in the Abrahms M-1 Tank in Iraq and other military operations.



Wayne

amsoilman

Wayne:



I'm not getting into this with you AGAIN... I can pull my Napa Gold PAPER filter right now and it will have a black oily residue on it, and that is NOTHING I ADDED... every one has ended up this way...



I can only assume that the majority of you don't run OTR and therefore don't run for hours in the midst of other diesels spewing soot that your sucking in. And while ALL of you can tell me many different reasons for my oily filter, it would ALSO affect your super duper superb awesome flawless Amsoil filter.



And remember I have a 3rd gen that doesn't have the typical breather issues of the 2nd gen.



steved

 

[Matt400]

Here's a new link.



Ryan

Thanks Ryan

 

[amsoilman]

Wayne:



I'm not getting into this with you AGAIN... I can pull my Napa Gold PAPER filter right now and it will have a black oily residue on it, and that is NOTHING I ADDED... every one has ended up this way...



I can only assume that the majority of you don't run OTR and therefore don't run for hours in the midst of other diesels spewing soot that your sucking in. And while ALL of you can tell me many different reasons for my oily filter, it would ALSO affect your super duper superb awesome flawless Amsoil filter.



And remember I have a 3rd gen that doesn't have the typical breather issues of the 2nd gen.



steved

Sorry for even responding to your post!!!! I was not inferring that you ADDED anything! I was simply stating the fact that these filters are a dry filter, and they are cleanable using a vaccum or LOW PRESSURE compressed air!

You made the statement earlier that these filters would not hold up when you use compressed air to clean them.



And yes, I don't do OTR running, but I do have a 3rd Gen truck same as yours.





Best regards







Wayne

 

[Duluth Diesel]

The AMSOIL Nanofiber filters, as discussed, are an awesome filter. No wet washing, no oiling, and using a technology that has been proven in OTR trucks and U. S. Military equipment. Show me where a AFe or K&N exist in heavy industry or military equipment. Good luck. This filter media, developed by Donaldson, is as proven as our Cummins engine is. It was about time someone came up with high performance air filtration with better technology than cotton gauze and oil. I have sold numerous Nanofiber filters, on just about every type of car and truck, and I've heard nothing but good reports back, from Corvettes to diesels.





-Chuck



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[RobertP]

The AMSOIL Nanofiber filters, as discussed, are an awesome filter. No wet washing, no oiling, and using a technology that has been proven in OTR trucks and U. S. Military equipment. Show me where a AFe or K&N exist in heavy industry or military equipment. Good luck. This filter media, developed by Donaldson, is as proven as our Cummins engine is. It was about time someone came up with high performance air filtration with better technology than cotton gauze and oil. I have sold numerous Nanofiber filters, on just about every type of car and truck, and I've heard nothing but good reports back, from Corvettes to diesels.





-Chuck



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i would normally agree but there is a line where it wont help but can hurt, bigger turbos and high hp has shown to pull the filter right up into the air box, and if thats not enough, they do suck dirt at that cfm level--about 900 and up, now the ones that are of a clamp on stly have not collapsed but will suck dirt, esspesially when its wet out. im not saying this to bash amsoil, i am a amsoil dealer, but people need to know the truth and high hp trucks with bigger turbos need not applie, ive seen it too many times.

 

[p-Bar]

WE took the stock air box set up and installed on a flow bench and 1000cfm thru it.

 

[steved]

WE took the stock air box set up and installed on a flow bench and 1000cfm thru it.

What was the limiting factor? The inlets/outlets or the filter?



steved

 

[Gary - K7GLD]

Sorry to point out the obvious, but lest we lose track...



The bottom line will ALWAYS be not just the volume of airflow, but the filtering efficiency AT that rate of flow...



As much as I respected the K&N I used prior to the BHAF, it was pretty obvious that in spite of it's greater flow rate compared to the OEM paper filter, extremely high flow rates would literally force a higher percentage of contaminants thru it just like most other filters - and if they are restrictive enough to resist passage of contaminants, they will usually simply collapse or distort under the applied pressure, and allow passage of garbage - sooner or later.



Here's an example - the OEM filter removed from my truck when it was still new, and very few miles. Notice the buildup of fine dust particles along what is supposed to be the sealing edge of the filter.



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Poor filter/housing design can cause this sort of leakage past the filter, OR the simple flexing and distortion of the filter when it is exposed to greater CFM airflow than it's designed for - this then is aggravated as more miles are put on the filter and flow is even more compromised as contaminants further restrict airflow.



The real trick will always be high flow rate combined with filtering ability - quotes displaying one without the other are sorta pointless.

 

[steved]

Bringing this back up to show what I was talking about... and probably anyone that drives their truck OTR or in city traffic will have this issue...



This filter has less than 10k miles. I have no source for the "oily" substance other than diesel exhaust soot from other trucks. Being I have a 3rd gen, there is no breather to barf oil out of... I have no leaks. This is a Napa Gold...



Enjoy!





steved

 

[CTRice]

Hey Guys,



How does the Fleetguard available from Geno's or Scheid stack up against the Stock Mopar Filter??? The Fleetguard uses foam instead of fiberglass as a prefilter.



Thanks, Chuck

 

[georgej]

Steved,



Your filter looks just like mine do when I go to change it. I wonder where all the oil comes from?? I wish my fleetguard filters from Genos still came with the prefoam filter! I think it would extend the life of 'em.



George

 

[CTRice]

I just bought some Fleetguard air filters from Scheid Diesel and they did have a foam pre-filter. My question is, are the Fleetguard filters better, worse, are the same as the Mopar filters with the fiberglass pre-filter??

 

[steved]

I just bought some Fleetguard air filters from Scheid Diesel and they did have a foam pre-filter. My question is, are the Fleetguard filters better, worse, are the same as the Mopar filters with the fiberglass pre-filter??

I would hazard a guess that the Mopar filter is a rebadged Fleetguard.



I would also hazard a guess the Fleetguard is a better filter...



steved

 

[CTRice]

Again I ask,



Is the Fleetguard filter with the green foam prefilter from Scheid Diesel as good as the stock Mopar filter with the fiberglass prefilter??



I have not seen any studies, but since Fleetguard is a Cummins subsidiary, I am thinking it is good enough for our Cummins diesels. Is It??



Thanks,

Chuck

 

[Yo Hoot]

The following are excerpts from the test.



Here is the most up-to-date list of filters to be tested. Please let me know if I have any mistakes.
I sent these out today:

1) Used AC Delco OE, 25 k miles from FishHog
2) New AC Delco OE from Bronco
3)Used K&N 17 k miles from Bronco
4) New K$N from SPICER and those sending donations.
5) Used Amsoil, older style, 10k miles from habanero.
6) New Amsoil with recharge oil from Kent Tuttle
7) Used UNI 15 k miles from Eric Merchant.
8) Mystery brand bargain filter (fits our airbox, a lot less pleats, probably for the gasser, looks like a WIX or a Purolator) from flhrciblueice

These are being sent direct to Testand by our members.

9) New Purolator A45314 from flhrciblueice.
10) New Wix (NAPA Gold) from flhrciblueice
11) New Fleetguard from jbplock.
12) New Baldwin from a bear.
13) New and possibly some used UMP / Donaldson conical paper filters from Cliff at UMP.
14) New AFE 54 Series from Tulsa 1718.
15) New AFE Pro Guard 7 from Mark Craig at Diesel Performance Parts, Inc.
16) New UNI with recharge oil from Diesel Power.
17) New Airaid from Diesel Power.


<table valign="middle" align="center" border="1" cellspacing="0"> <tbody> <tr> <td class="appcover2" align="center">Baldwin</td> <td class="appcover2" align="center">Comp Name</td> <td class="appcover2" align="center">Comp PartNo</td> <td class="appcover2" align="center">Comp Footer</td> <td class="appcover2" align="center">Description</td> <td class="appcover2" align="center">Remarks</td> </tr> <tr class="appcover3" bgcolor="#dcdcdc"> <td class="appcover3" align="left">PA4134</td> <td class="appcover3" title="ACDELCO" align="left">ACDELCO</td> <td class="appcover3" title="A1618C" align="left">A1618C</td> <td class="appcover3" align="left"> </td> <td class="appcover3" align="left"> </td> <td class="appcover3" align="left"> </td> </tr> <tr class="appcover3" bgcolor="#f5f5f5"> <td class="appcover3" align="left">PA4134</td> <td class="appcover3" title="BALDWIN FILTERS" align="left">BALDWIN FILTERS</td> <td class="appcover3" title="PA4134" align="left">PA4134</td> <td class="appcover3" align="left"> </td> <td class="appcover3" align="left"> </td> <td class="appcover3" align="left"> </td> </tr> <tr class="appcover3" bgcolor="#dcdcdc"> <td class="appcover3" align="left">PA4134</td> <td class="appcover3" title="BIG A" align="left">BIG A</td> <td class="appcover3" title="94678" align="left">94678</td> <td class="appcover3" align="left"> </td> <td class="appcover3" align="left"> </td> <td class="appcover3" align="left"> </td> </tr> <tr class="appcover3" bgcolor="#f5f5f5"> <td class="appcover3" align="left">PA4134</td> <td class="appcover3" title="CHAMPION LABORATORIES" align="left">CHAMPION LABORATORIES</td> <td class="appcover3" title="LAF1520" align="left">LAF1520</td> <td class="appcover3" align="left"> </td> <td class="appcover3" align="left"> </td> <td class="appcover3" align="left"> </td> </tr> <tr class="appcover3" bgcolor="#dcdcdc"> <td class="appcover3" align="left">PA4134</td> <td class="appcover3" title="CITGO" align="left">CITGO</td> <td class="appcover3" title="LAF1520" align="left">LAF1520</td> <td class="appcover3" align="left"> </td> <td class="appcover3" align="left"> </td> <td class="appcover3" align="left"> </td> </tr> <tr class="appcover3" bgcolor="#f5f5f5"> <td class="appcover3" align="left">PA4134</td> <td class="appcover3" title="CARQUEST" align="left">CARQUEST</td> <td class="appcover3" title="88678" align="left">88678</td> <td class="appcover3" align="left"> </td> <td class="appcover3" align="left"> </td> <td class="appcover3" align="left"> </td> </tr> <tr class="appcover3" bgcolor="#dcdcdc"> <td class="appcover3" align="left">PA4134</td> <td class="appcover3" title="FLEETGUARD" align="left">FLEETGUARD</td> <td class="appcover3" title="AF25848" align="left">AF25848</td> <td class="appcover3" align="left"> </td> <td class="appcover3" align="left"> </td> <td class="appcover3" align="left"> </td> </tr> <tr class="appcover3" bgcolor="#f5f5f5"> <td class="appcover3" align="left">PA4134</td> <td class="appcover3" title="FLEETRITE" align="left">FLEETRITE</td> <td class="appcover3" title="AFR825848" align="left">AFR825848</td> <td class="appcover3" align="left"> </td> <td class="appcover3" align="left"> </td> <td class="appcover3" align="left"> </td> </tr> <tr class="appcover3" bgcolor="#dcdcdc"> <td class="appcover3" align="left">PA4134</td> <td class="appcover3" title="GENERAL MOTORS CORP. " align="left">GENERAL MOTORS CORP. </td> <td class="appcover3" title="25332443" align="left">25332443</td> <td class="appcover3" align="left"> </td> <td class="appcover3" align="left"> </td> <td class="appcover3" align="left"> </td> </tr> <tr class="appcover3" bgcolor="#f5f5f5"> <td class="appcover3" align="left">PA4134</td> <td class="appcover3" title="HASTINGS PREMIUM FILTERS" align="left">HASTINGS PREMIUM FILTERS</td> <td class="appcover3" title="AF1119" align="left">AF1119</td> <td class="appcover3" align="left"> </td> <td class="appcover3" align="left"> </td> <td class="appcover3" align="left"> </td> </tr> <tr class="appcover3" bgcolor="#dcdcdc"> <td class="appcover3" align="left">PA4134</td> <td class="appcover3" title="KRALINATOR" align="left">KRALINATOR</td> <td class="appcover3" title="LA1916" align="left">LA1916</td> <td class="appcover3" align="left"> </td> <td class="appcover3" align="left"> </td> <td class="appcover3" align="left"> </td> </tr> <tr class="appcover3" bgcolor="#f5f5f5"> <td class="appcover3" align="left">PA4134</td> <td class="appcover3" title="LUBER-FINER" align="left">LUBER-FINER</td> <td class="appcover3" title="LAF1520" align="left">LAF1520</td> <td class="appcover3" align="left"> </td> <td class="appcover3" align="left"> </td> <td class="appcover3" align="left"> </td> </tr> <tr class="appcover3" bgcolor="#dcdcdc"> <td class="appcover3" align="left">PA4134</td> <td class="appcover3" title="NAPA GOLD" align="left">NAPA GOLD</td> <td class="appcover3" title="6678" align="left">6678</td> <td class="appcover3" align="left"> </td> <td class="appcover3" align="left"> </td> <td class="appcover3" align="left"> </td> </tr> <tr class="appcover3" bgcolor="#f5f5f5"> <td class="appcover3" align="left">PA4134</td> <td class="appcover3" title="SERVICE 1" align="left">SERVICE 1</td> <td class="appcover3" title="LAF1520" align="left">LAF1520</td> <td class="appcover3" align="left"> </td> <td class="appcover3" align="left"> </td> <td class="appcover3" align="left"> </td> </tr> <tr class="appcover3" bgcolor="#dcdcdc"> <td class="appcover3" align="left">PA4134</td> <td class="appcover3" title="WIX" align="left">WIX</td> <td class="appcover3" title="46678" align="left">46678</td> </tr> </tbody> </table>

 

[Yo Hoot]

The following filters did NOT make the test. UMP/Donaldson and AirRaid. Cliff at UMP had important issues outside of his control and was unable to get the filters sent to Rhode Island. The AirRaid filter simply never made it and probably was never shipped. None the less, here are the results of the EFFICIENCY test. Flow restriction, dirt holding capacity, etc. will be posted later.
In the order of filtering efficiency the results are:

FILTER % Efficiency

AC Delco OE 99. 93%
Baldwin 99. 72%
No name filter (made for gas engine, 1/3 less pleats) 99. 32%
AFE ProGuard 7 (73-10062), panel filter 99. 23%
WIX/Napa 99. 03%
Purolator 98. 73%
Amsoil, new style 98. 63% (not nanofiber)
UNI 97. 93%
K&N 96. 80%
Additionally, these 2 were tested using FINE test dust. The K&N was cleaned and retested, the AFE was the conical version:
K&N 89. 85%
AFE Conical 92. 33%



Some additional data and info.
Every filter is initially run at 350 cfm and initial RESTRICTION is documented in "inches of water differential pressure". The test is run and dirt is fed at a rate of 9. 8 grams per minute. The test is continued until the flow restriction reaches INITIAL RESTRICTION + 10 inches of water. At that point the total dirt fed is documented, total dirt getting past the filter is documented, and with those numbers filtering efficiency is calculated.
A filters ability to "flow air" is indicated by it's "Initial Restriction". A filter's dirt holding/loading capacity is indicated by the " Accumulative Capacity". I will also post the "Accumulative Gain" of each filter which is the amount of dirt that got past the filter during the test.

Course test dust has the SAME tiny particles as Fine, but the ratio is different. As mentioned before, using Course dust will not change the outcome of filter ranking, only the % number. In other words, K&N will still test worst, but the numbers for all the filters will be smaller. Example: K&N tested with Course was 96. 8%, with Fine 89. 85%. AFE with Course was 99. 23%, with fine 92. 33%.
Course dust has ultra-fine 0-5 micron dust in it, just less. Ranking would be no different, just the numbers would look worse. SPICER



FLOW RESTRICTION FROM BEST TO WORST:

FILTER RESTRICTION in Inches H2O

K&N 4. 54
Mystery bargain filter 4. 78
AFE Pro Guard 7 Panel 4. 99
Purolator 5. 05
WIX/Napa 5. 06
UNI 5. 40
Baldwin 5. 71
Amsoil 5. 88
AC Delco 6. 23

DIRT HOLDING CAPACITY From best to worst. This is the AMOUNT OF DIRT it took to create an ADDITIONAL 10 inches of water restriction. At that point the test is terminated. This indicates HOW LONG a filter is good before it must be cleaned or replaced.

AC Delco 573. 898 grams
WIX/Napa 447. 366
Purolator 388. 659
Baldwin 388. 154
UNI 374. 638
Mystery bargain 350. 402
AFE Pro Guard 7 232. 516
K&N 211. 58
Amsoil 196. 323

TOTAL DIRT PASSING THE FILTER DURING THE TEST. This is how much dirt your engine will take in if you use the filter for the duration that would cause the filter to become "dirty" enough to need replacement or cleaning. The "Dirt Passing The Filter" is the dirt collected by the "Post Filter" during the test.

FILTER DIRT IN GRAMS PASSED

AC Delco 0. 4 g
Baldwin 1. 1g
AFE Pro Guard 7 1. 8g
Mystery Bargain 2. 4g
Amsoil 2. 7g
WIX/Napa 4. 4g
Purolator 5. 0g
K&N 6. 0g
UNI 7. 9g

Note: The Purolator was reported to have a seal malfunction during the test and passed more dirt than it would have with a good seal.

 

[Duluth Diesel]

This test does not test the new AMSOIL Nanofiber filters. The AMSOIL filters being tested here are not made anymore. I'd like to see how the new Nanos stack up. From what I've seen, they'd do very well.



-Chuck

 

[Kry226]

This test does not test the new AMSOIL Nanofiber filters. The AMSOIL filters being tested here are not made anymore. I'd like to see how the new Nanos stack up. From what I've seen, they'd do very well.



-Chuck

I am interested in that too, but even more importantly, I feel some used oil analysis on the nano filter is in order as well. Real world application and results is what I am looking for before I pull the Fleetguard out of the airbox. I have yet to see any UOA for the nano filter.

 

[CTRice]

Again I ask,



Is the Fleetguard filter with the green foam prefilter from Scheid Diesel as good as the stock Mopar filter with the fiberglass prefilter??



I have not seen any studies, but since Fleetguard is a Cummins subsidiary, I am thinking it is good enough for our Cummins diesels. Is It??



Thanks,

Chuck

I guess there is no simple answer to this question.



I understand the need for detailed studies, but I now have a Fleetguard air filter in my airbox and would like to know if I should replace it with a Mopar or leave it alone until the next round of studies is complete?



Please advise,

Chuck