Fram Endurance Flashlight Test in canister

A UOA without a PC isn't going to show any oil filtering performance. And one PC with nothing but the ISO code isn't going to give any side by side comparison of different filters on the same engine. But one PC would be better than nothing.
Understood, just providing what I can.

I contacted Horizon and they said they don’t do particle count testing on used oil because the fluid is too dark to see the particles in the sample.
 
I'm now going with either the Carquest Premium (sold at Carquest or Advance Auto Parts stores) or Microgard Select (sold at O'Reilly's), preferably the ones made in Vietnam instead of China. I gave up on Motorcrafts too due to sloppy glue that comes loose in service.

Lots of discussion and cut open photos of the CQP and MGS filters in this forum. No leaf spring (coil spring instead), and the bypass valve is not metal to metal. Quality construction, and both the base gasket and ADBV are silicone. Cost is typically $8 - $10.

Do you recommend the CQP and MGS in cartridge filters too, or something else?
 
Do you recommend the CQP and MGS in cartridge filters too, or something else?
I don't know much about those brands in the cartridge form. Not even sure there have been any posted here from what I recall. Might be worth dropping in the store and take a look at them to see what you think.
 
I contacted Fram a couple times, but no response yet. Been about 2 weeks, so not expecting much.
Maybe we should all start asking about it and they will pass along that the design downgrades are apparent and customers are switching brands. I will email too.
 
Do you recommend the CQP and MGS in cartridge filters too, or something else?

Somewhat application dependent, but I wouldn't buy a cartridge from either of those companies without seeing it in person.

I have seen a red Carquest box for a popular Mercedes filter contain both the Mann OE and the Wix filter. Since they change suppliers often, they may be getting the Premium Guard filter now.

Microguard show a picture of the Wix version for the basic filter and a made in Vietnam Premium Guard for the Premium filter.

Since you can get the filters from the original OE manufacturers for the same or less price, it is just not worth it in those cases.
 
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But, it's most likely still "filtering more oil than it isn't." /s ;) Imo, not what one should expect to see/find in any filter, but even more so in a premium one costing ~$13. The fit and finish of the bypass seal area just doesn't get it done.

Thanks for the effort and good work.
Indeed - if the wavy metal ends before the radius - it can still seat there - many of the end caps have a raised radius …
As dP increases - so does the seating force …
 
Been shown there's an air gap when the filter is assembled and the leaf spring is under pressure. Window cut in the dome of the can to inspect the leaf spring to end cap sealing area. The leaf spring it too stiff to bend in use and "seal" better. The root causes of the problem is rippled sealing surface and/or non-flat/warped leaf spring. Trying to make a good seal happen on a metal to metal interface needs both a smooth and a flat surface, or it's futile to think it's going to seal well.
 
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Yep, won’t seal under pressure in the can as I proved and WCW put one in a vise with the same results. I also heated this one to over 200 degrees and thermal expansion would not seal it.
 
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Might i be safer to stay with my fram ultra 7317 or go back to Menards and buy Purolator 1 / Boss?
Ultra has the same problem unless you can find an OG.

 
I will be sticking to Toyota filters for my Toyota and AC Delco E-Core for my Chevy going forward.

Fram Tough Guard for situations where OEM is not available.
 
In acknowledgement of a reply above, I'll just say for me this is now beating a dead horse. I don't believe that being inside the can and/or in use changes anything about the light test findings. It's a reliable indication of oil bypass in the metal to metal seal area, period. @ZeeOSix and @Glenda W. above sum up what's been found and fwiw, I agree.
 
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