Beware a Wix with louvers?? C&P Virgin Wix ProTec PXL10332 - Toyota 90915-YZZN1 equivalent

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Greetings BITOG,

This C&P is going to seem eerily familiar to the one from a few weeks ago concerning a different Wix product, in the same size, and COO. For the pictures and discussion of another possibly defective Wix "Premium" filter look here --> Defective??? Wix WL10332 with closed/nearly closed louvers

Todays filter is from their budget ProTec line and the part number is PXL10332. COO is Mexico and the filter is dated 12/19/23. It was purchased from Rock Auto. By the rough numbers, here is how it compared to the "Premium Wix" WL10332.

PXL10332 Can weight 180.5 g Filter Pleats 54 Filter Core Weight 50.9 g Media Thickness 0.0265 in Media Length 48 in
WL10332 Can weight 182.2 g Filter Pleats 51 Filter Core Weight 53.1 g Media Thickness 0.0365 in Media Length 45.25 in

Both filters use the same orange thick (relatively stiff) silicone ADBV, both use a dome end bypass valve constructed from a fiber disc sealing against metal, and both shared the same external dimensions. Other things shared by both filters, sloppy glue job with excessive glue on all internal parts to include the clean side, extremely poorly formed louvers with less that 50% open more than 0.008 in, bypass valves that showed significant light leakage, and a can thickness of 0.0145 in. Additionally both filters use a coil spring, a crimped media seam, and metal end caps.

After seeing 3 bad Wix WL10332 made in 5/2024 and this filter in 12/2023 with the same poorly formed louvers. I think I will be done with louver equipped Wix filters until I see clear evidence that they're improving. Enjoy the pics.
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Amazing so many here spend their time and money to show the rest of us what would otherwise be an automotive enigma.
Passport,

I don't mind contributing to the BITOG community. I have learned a lot here, and the few bucks I spent on cutting these filters is just the price of education. Plus, I was going to do it anyway, to help make an informed decision of what filters I wanted to run on the better half's RAV4 Hybrid.
 
Bypass special design ... those louvers are way too choked down to function correctly.

At this point, why even bother with oil filters that have louvers?

I posted in another thread about checking out the latest Purolator Boss oil filters.
I always open the box to ensure I am getting the filter I am paying for while also checking the gasket and overall exterior.

However, with the recent problems across more than one oil filter line, an inspection down the tube is necessary.

In my case, the exterior was fine but in looking at the louvers via a phone light, the immediate reaction was, “are those louvers even open?”

If you have to ask that question, the answer is “very likely not.”

Back on the shelf!
 
At this point, why even bother with oil filters that have louvers?

I posted in another thread about checking out the latest Purolator Boss oil filters.
I always open the box to ensure I am getting the filter I am paying for while also checking the gasket and overall exterior.

However, with the recent problems across more than one oil filter line, an inspection down the tube is necessary.

In my case, the exterior was fine but in looking at the louvers via a phone light, the immediate reaction was, “are those louvers even open?”

If you have to ask that question, the answer is “very likely not.”

Back on the shelf!
Hastings/Baldwin/Donaldson always (in my experience) have had well formed louvers that are trustworthy.
 
At this point, why even bother with oil filters that have louvers?

I posted in another thread about checking out the latest Purolator Boss oil filters.
I always open the box to ensure I am getting the filter I am paying for while also checking the gasket and overall exterior.

However, with the recent problems across more than one oil filter line, an inspection down the tube is necessary.

In my case, the exterior was fine but in looking at the louvers via a phone light, the immediate reaction was, “are those louvers even open?”

If you have to ask that question, the answer is “very likely not.”

Back on the shelf!
It's becoming obvious that we shouldn't care what oil we use.
We should instead put 100% of our focus on avoiding dangerous oil filters.
 
At this point, why even bother with oil filters that have louvers?

I posted in another thread about checking out the latest Purolator Boss oil filters.
I always open the box to ensure I am getting the filter I am paying for while also checking the gasket and overall exterior.
The Premium Guard and off-shoot PG labeled filters (like Microgard Select, Carquest Premium, etc) all use a lot of nice big holes in the center tube. Lots of people are going with those filters these days ... me included. I was sick of Motorcraft filters after they went with louvers and sloppy glue on the end caps that can come loose during use. I've been inspecting filters inside and out for decades before buying and using.

I wouldn't mind using a well made eCore center tubed filter with metal end caps if pretty high efficiency to boot. I have no issue with an eCore center tube if the windows are small and the filter pleats packed relatively tight and evenly spaced. But with the PG made filters with big holes, you never have to be concerned about them.
 
THIS is NOT your Grandfather's WIX filter......all the trust built over many years, pride in reputation and performance, pretty much gone. Looks like Mann-Hummel's search for the cheapest and most profitable has struck again. I've given up looking for excellence in filters, it's a constantly changing game, almost like Wack-A-Mole. I used Mobil1 filters for years when they were made by Champion Labs and were dependable, now a call to Mobil1 tech support informs me now sourced from Mann-Hummel, specifically Purolator. I quit! Both my Honda vehicles have a 8yr 140k HondaCare warranty, I use the Honda 15400-PLM-A02 filter that Honda warranties their engines with, yup, the "Fram in a blue can" along with Mobil1 EP oils. Surprisingly, UOA's show very low particle counts. I've stopped guessing and started sleeping at night. At least it's still marked "Made in the USA"
 
The Premium Guard and off-shoot PG labeled filters (like Microgard Select, Carquest Premium, etc) all use a lot of nice big holes in the center tube. Lots of people are going with those filters these days ... me included. I was sick of Motorcraft filters after they went with louvers and sloppy glue on the end caps that can come loose during use. I've been inspecting filters inside and out for decades before buying and using.

I wouldn't mind using a well made eCore center tubed filter with metal end caps if pretty high efficiency to boot. I have no issue with an eCore center tube if the windows are small and the filter pleats packed relatively tight and evenly spaced. But with the PG made filters with big holes, you never have to be concerned about them.
Would the Pentius PLXL7317 filters have the same size “nice big holes” in the center tube that you mentioned above.

Also, if you store an oil filter in a room temperature dry place, how many years can you safely store them for?
 
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