I have not heard anything back yet, if I have not heard anything by COB tomorrow I'll chop one up!
Defective??? Wix WL10332 with closed/nearly closed louvers
- Thread starter FlyNavyP3
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WCW cut one open this morning, made in Germany. The media is as “holey” as it gets. I think of why, since they are an old time filter maker and know what it is.
That really does not bother me if it is a rock catcher for media. What bothers me is the propensity for M&H USA filters to be torn on their media negating any better efficiency they may have.
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So tonight I was at Menards. I decided to take a look at the PureOne oil filters. Thanks to ZeeOSix, I used my trusty flashlight on my phone and checked the louvers for the very first time 
This filter I was looking at had some good-looking louvers.
Girlfriend just gave me a strange look.
I said, " it's a quality check ".
This filter I was looking at had some good-looking louvers.Girlfriend just gave me a strange look.
I said, " it's a quality check ".
I had Evan England from Mann Hummel reach out on Friday in response to my call to their Tech Department. I was at work and couldn't call back at a reasonable time, so I'm planning to reach out on Monday to see what he has to say. hopefully it's not the brash reply that you had.
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Post what you learn from him.
I guess I figured these times we are living in, a company that had user feedback on their products would be open to improvement.
My WIX filters have opened louvers, but they seem to be rather narrow. I promptly swapped to Toyota OE filter after 4 hours of wix use.
So, makes me wonder how many of these "louvered" filters are closed off, yet installed at all the quick lube places, causing the filter to basically be in bypass the entire OCI........Customer would probably never know....
I would never, ever, use one.
I would never, ever, use one.
4WD
$50 site donor 2025
If I see one like that - will buy and cut …
These can easily be an “optical contusion”
These can easily be an “optical contusion”
I don't think it's an optical illusion. In the close up in post 49 you can't see any media through the louvers. Looks like the steel just stretched and a hole never occurred when the louvers were formed. That's why the area where the louver hole should be is silver looking instead of being open with media behind the louver.
ive been running them for a couple years , never checked , never knew , ones on shelf dont look quite as bad but dont look good after shinning a light in , i will definatly be cutting one apart
that kinda sucks
I assume you are at work or leaving soon, just wondering about the contact and tear apart
That’s what I’m running on my Express with the HPL EC 30 added-~$8-11% rebate-$5 Puro rebate. Louvers looked good in mine (PL22500, slight oversize).So tonight I was at Menards. I decided to take a look at the PureOne oil filters. Thanks to ZeeOSix, I used my trusty flashlight on my phone and checked the louvers for the very first time
Girlfriend just gave me a strange look.
I said, " it's a quality check ".
Any update?
Spoke to Evan at Mann Hummel on Thursday and discussed the issue I saw in the filters. He had me send an e-mail to him with pictures of the date codes and center tubes. He asked that I not throw the filters away until I hear back from him as he was going to forward to engineering. If they had stock of the same date code/lot on the shelf to pull and inspect, they wouldn't need my filter(s) back. If not, they would send a call tag to get them to engineering. I also ordered a few other brands in this size from Rock to chop up for the group, hopefully as a comparison to this WL10332. Will advise when I hear more.
Zoomed in photo from post #1. On the louver in the red oval you can see where the metal was trying to open up. Some of the others show the same thing. The metal basically just stretched when the louvers were formed, and never opened up. This filter would have been in bypass 100% of the time, and depending on the size of the bypass valve could have put the oil pump far into relief at low RPM and starve the engine of adequate oil flow at higher RPM.
I have purchased the following filters to cut an post here as a comparison to this Wix WL10332.
They are:
CHAMP / LUBER-FINER PH2840 (Economy)
HASTINGS / BALDWIN LF410 (Standard Replacement) Spin-On
CHAMP / LUBER-FINER PH2840XL (Standard Replacement) XL Synthetic
PRO-TEC PXL10332 (Economy
BECK/ARNLEY 0418066 (Standard Replacement)
HENGST H97W07 (Standard Replacement) Spin-On
VARIOUS MFR PG4476EX (Standard Replacement) Extended Life; Spin-On
VARIOUS MFR PG4476 (Economy) Spin-On
The filters should arrive this week for dissection.
They are:
CHAMP / LUBER-FINER PH2840 (Economy)
HASTINGS / BALDWIN LF410 (Standard Replacement) Spin-On
CHAMP / LUBER-FINER PH2840XL (Standard Replacement) XL Synthetic
PRO-TEC PXL10332 (Economy
BECK/ARNLEY 0418066 (Standard Replacement)
HENGST H97W07 (Standard Replacement) Spin-On
VARIOUS MFR PG4476EX (Standard Replacement) Extended Life; Spin-On
VARIOUS MFR PG4476 (Economy) Spin-On
The filters should arrive this week for dissection.
Thanks for the contribution. I look forward to it!
