You can lookup the 33585 and 33585XE on wixfilters.com and they have the filter information listed right there. It states 33585XE "High Efficiency version of 33585 (Glass media)" The 33585 is a paper media. The email they sent me was literally what I originally posted, that's all they said.

 

When I went to Wix web site like most they send you off to filter council. They don't give you any info about the brand of filter you want info on. Though you can read this: Primary fuel filters typically have a nominal rating of 10 - 30 microns. Secondary fuel filters typically have a nominal rating of 2 - 10 microns. http://www.filtercouncil.org/techdat...faqhdfuel.html

Unless Wix can give better info about filters then the filter council did I will not be buying or using any Wix made filter.

 

Wow! Your the lucky one. I've called and all I get told is that the WIX 33585 and 33585XE fuel filters is that they meet OEM Specs. I've e-mailed and never have received a reply back from WIX. Not questioning you at all on this but could you copy & paste a copy of the e-mail you received from WIX....I would really like to read what they had to say to your question.

 

Yeah... yet they publicly advertise that they don't.

 

Semi-related question: what's the difference between a Baldwin PF7777 and a PF7977? According to the tech sheet I just read, they're the same size physically--dimensions--but is the 7777 the 10 micron and the 7977 the 7 micron? Or the other way around? Thoughts?

It's time to change the fuel filter, and I'm just not shelling out the $40 to the dealer for the "Mopar" Fleetgard item.

TIA!

 

Never heard of the 7777.. but 7977 is 5 microns absolute.

But on wixfilters.com the 7777 looks like it crosses to the 01-02 filter.

 

For your 2001 I believe you need the PF7777. I don't think your stock lift pump is strong enough for the PF7977. I may be wrong and you might want to check that out to find out for sure. But the Baldwin fuel filter is hard to beat. I use to run the Baldwin PF7977 and I was very pleased with it, Now since I updated my fuel filter system I'm running the Baldwin PF7777 in my stock fuel canister and then a Cat 2-micron before the CP3.

 

So if the XE is 7 microns, why doesn't it meet OE specs?

Anybody find any of the premium filters locally that are less then the dealer?

I work at an auto parts store and get the WIX for cost so I prefer to use them if possible.

How many micron is the stock filter?

The WIX has to be better then the FRAM, thats for sure.

 

Wix is 7 microns nominal (50% efficient) OE spec is 7 microns absolute (98.7% efficient)... that is why it doesn't meet spec.

Fleetguard or Baldwin, those are you choices for filters that meet spec.

 

There is no uniformity or reproducibility in the nominal rating spec of a filter. There are too many variables involved comparing different filters for in-service performance to make this a meaningful spec at all. Perhaps ah64id would like to quote the source for his statement that an nominal rating = 50% efficiency? Fewer and fewer manufacturers are stating absolute ratings. I can speculate on the whys and wherefores, but would rather not start another controversy.

A mean rating would be more meaningful, but that's neither here nor there. Suffice it to say, that if you want more information about Wix filters you should go to their catalog and not assume everything you need to know is posted on a web page. They do have an online catalog. Just because it's posted here doesn't make it true, and just because you didn't find the information, doesn't mean it doesn't exist:

 

My owner's manual says the required fuel filter for my '05 is Mopar 05015581AB or equivalent. I have been unable to find any specification for that part number. Does anyone have a link to any official Chrysler document that gives the specs for the filter. If there is one, I can't find it.

I know it's a Fleetguard, but I am looking for the Chrysler/Dodge specification. If they are going to claim a Wix filter doesn't meet specs and void warranties, they better provide those specs to their customers.

 

There are many references for nominal being 50%, that is what the industry standard is for nominal, just like absolute is 98.7%. I have emailed and talked to all the major filter makers and gotten absolute data based on J1985 standards. That is why I say say with confidence that OEM and Baldwin are the only filters that meet spec...

http://www.filtercouncil.org/techdata/faqs/faqhdhyd.htm

http://www.filtercouncil.org/techdata/tsbs/89-5R3.pdf

I have taken the time to find the best information available on filter data. I have countless spec sheets from many mfgrs... Run WIX if you want, but you do so knowing they aren't up to the OE standard.


That part number has been superseded by the one in this TSB: http://dodgeram.info/tsb/2006/14-007-06.htm

Dodge/Cummins found that the 10 micron filter they were running was not enough filtration, which is why they went to 7 microns..

I have spoken to Bosch about their system on the HPCR, they want a 5 micron absolute rating for their system... Which is why I have 2 additional filters on my truck. A 20 mic f/w sep, a 5 mic f/w sep in the OE canister, and a true 2 mic Cat filter.

 

Thank you for the TSB. However, it does not speak to model years prior to 2006, and not even to all 2006 models. Also, it does not state that Mopar part number 05015581ab has been superseded by anything. In fact, the 2007 Mopar Filter Application Guide (latest available on the web) still lists 05015581ab as the appropriate part number for model years 2000-2002, 2005, and 2006.

I have not been able to find anything on the web that officially says the 05015581ab has been superseded. What I have found are numerous private statements in various forums that a Fleetguard filter that the Mopar filter crosses to has been superseded by another Fleetguard product, but nothing from Chrysler themselves.

Again, if Chrysler is denying warranty coverage for anyone who has a CTD equipped truck that calls for the 05015581ab filter simply because it has a Wix in it, they appear to be in violation of the Magnuson-Moss Warranty Act.

Now, a question. Did Bosch state that their HPCR equipment requires a 5 micron filter for all Dodge models years, or just the '06 models onward?

Lastly, something about Baldwin filters. I try to run Wix filters exclusively. However, when I tried to cross one oddball tractor filter to Wix, I had no luck. But Baldwin did have cross reference and listed a filter for the application. I was suspicious that Baldwin would have a filter when Wix did not and carefully checked their specs against those of the equipment manufacturer. The Baldwin filter did not meet the specs, despite their listing it as doing so.

Today I found a PDF on the Fleetguard site warning their customers against using certain Baldwin filters. Basically, they warned that the Baldwins they tested did not meet Fleetguard's specifications and were not a suitable replacement, despite Baldwin advertising them as replacing the Fleetguards.

To me, that's a whole bunch of strikes against Baldwin. I won't touch them.

 

Has anyone heard back from Wix stating that there fuel filters are also water separators and meet OE spec for water removal?

 

I just cross referenced the Mopar 05015581AB from my owners manual to a Fleetguard using the Cummins/Fleetguard sites. It came back as FS19855, which is the ULSD version of the FS19579. It is a 10 micron filter, not 7, and is listed as being current for my '05 (and some other years) by Fleetguard.