It’s a good informative thread but did get overrun by a couple people with agendas.
NEW FRAM ENDURANCE 3614 cut open
- Thread starter 53' Stude
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I just skim it and enjoy the pics.
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Somewhere in the filter assembly is a bypass valve. I know they sell GM ones, so it must be someone replaces them. Toyota has a bypass in the filter cap. What these factory metal bypasses are bypassing maybe no one knows. More ingredients for the stew.I'm very excited as I just learned about this whole fiber end cap thing. All my cartridge filters have them so didn't realize there was a choice
My truck actually has a OG Ultra that you mailed to me YEARS ago after your Focus was totaled.
Good to hear Luke. May toss one of the OG uktra’s on the Dakota
Time to mail it back to 53' for a cut and inspection. 
OVERKILL
$100 Site Donor 2021
Wire mesh backing on the media.
And that means you get the covetted felt end caps?
I’m unsure but want to say no
So then what is the attraction to the OG ones I see everyone here talk about now that I've spent some time in this sub forum? Just overall better quality?
OVERKILL
$100 Site Donor 2021
It means, on the canister filter, you get the felt sealing ring, as well as the superior, pre-cheapening, media.
Finding OG Ultras and Titaniums is getting nearly impossible these days. If it has the wire backing, you should be able to see it through the holes or louvers in the center tube.
All I know is I cut some open and they looked ok.
Them burrs on the holes make me nervous.
It looks ugly, but it's just deformed metal - ie, not a clean hole punch job. Oil flow is not going to cause deformed metal like that to break off. I do however inspect every oil filter center tube to look for any obvious hanging fine slivers of metal that look like they could come loose in use.
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I’m wondering whether these rusty filters are sitting on the shelf of a humid distribution warehouse before hitting the shelves. I don’t think I can blame the manufacturer but could blame the distribution. I’ve never seen rust but I’m in dry SoCal. I just took apart a new Synthetic Endurance FE4967. I have no qualms about the bypass valve since the competition, the OE Toyota Denso has the same leakage problem. This is the first filter I’ve opened with an opening spring pressure/behavior close to the Toyota OE. I was delighted with the valve spring pressure and behavior. But holy cow the pleats were sooooooooo asymmetric. Two areas of spread out wide pleats on opposite sides and then two areas where the pleats were sandwiched /packed so tight there was going to be limited flow at these areas. And narrow louvres. I’ve seen FRAM filters with much better formed louvre stampings. I hope management at FRAM /Champion reads this forum. We need lots and lots of social media outrage to get these companies to care about QC.
Based on specs and materials and the OE-like valve pressure and behavior (unlike the horrible single layer spring design of Purolator) and ISO testing data, the Synthetic Endurance would win. But it lost me on QC. I’ll stick to the 5 dollar leaky Toyota filter.
Based on specs and materials and the OE-like valve pressure and behavior (unlike the horrible single layer spring design of Purolator) and ISO testing data, the Synthetic Endurance would win. But it lost me on QC. I’ll stick to the 5 dollar leaky Toyota filter.
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I’d say a mix between OEM and Premium Guard made filters at this time. For me it’s easy to swing by O’Reilly’s or AAP for a PG made filter.
Based on some of the comments I'd say that also depends on whether you have a cannister or cartridge.
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