Fram Endurance Flashlight Test in canister

[Fair enough]

I took some pics. Not a very good job on picturing the gaps. Filter not clean inside in my opinion. Some kind of tiny silver specks on silicone valve, couldn’t picture. Valve has black ring from not clean end cap. More bumps on bypass sealing area outside of the ripples. Didn’t measure gap, almost no need to. I read First Brands was bought this year by another conglomerate, Crowne.

 

[ZeeOSix]

Odds of going through tiny gap a second time would appear to be astronomical? This is why, at least in my mind, superior filter efficiency would greatly mitigate against small breaches in the bypass.

 

[ZeeOSix]

I took some pics.
View attachment 240872View attachment 240873

That's an insane level of ripples Looks like they are being pounded out by hand in a dirt floor shop in Pakistan as seen on YouTube.

 

[ZeeOSix]

The particle test numbers that you yourself have posted up ARE after the particles have gone around and those are the ones that did not get captured by the highly efficient media precisely because there is a gap to get through.

These particles are expressed as ppm. There are lots of them not just 57.8!

The highly efficient filters should show almost zero particles in the 21 to 38 micron range after 4.4 grams of test dust goes through them. There should certainly be zero above 38 and there is not.

A leak gap of the sizes discussed here should raise the PC in all particle sizes. They are all going to get through in the oil that goes through the leak path.

 

[CharlieBauer]

I took some pics. Not a very good job on picturing the gaps. Filter not clean inside in my opinion. Some kind of tiny silver specks on silicone valve, couldn’t picture. Valve has black ring from not clean end cap. More bumps on bypass sealing area outside of the ripples. Didn’t measure gap, almost no need to. I read First Brands was bought this year by another conglomerate, Crowne.
View attachment 240864View attachment 240865View attachment 240866View attachment 240867View attachment 240868View attachment 240869View attachment 240870View attachment 240871View attachment 240872View attachment 240873

The design, manufacture and QA of that leaf spring are all a disgrace.

 

[Mewbs]

I took some pics. Not a very good job on picturing the gaps. Filter not clean inside in my opinion. Some kind of tiny silver specks on silicone valve, couldn’t picture. Valve has black ring from not clean end cap. More bumps on bypass sealing area outside of the ripples. Didn’t measure gap, almost no need to. I read First Brands was bought this year by another conglomerate, Crowne.
View attachment 240864View attachment 240865View attachment 240866View attachment 240867View attachment 240868View attachment 240869View attachment 240870View attachment 240871View attachment 240872View attachment 240873

Looks like they also cheapened the media of the larger Ultra filters but kept the wire backing, probably because it won't be able to support itself under pressure due to pleat depth and wide spacing. I dunno why such relentless pursuit for short term profits and gains while sacrificing integrity in such a competitive market when you have overseas made oil filters looking better every day. That thing looks like some real Americaneseium. Thanks for sharing.

 

[KevinMalone]

That's an insane level of ripples Looks like they are being pounded out by hand in a dirt floor shop in Pakistan as seen on YouTube.

I know you jest but the Pakistani handmade filters actually have integrated bypass valves and wouldn't have this issue

 

[KevinMalone]

This might be old news, but the Fram Ultra tested by Brand Ranks looks like it had a ripply leaf spring:

And for reference, BR's particle count results:

I believe both the Endurance and Ultra are rated at 99%+ >20 microns, yet the Endurance particle counts were quite a bit lower. The implication is that the Ultra's bypass valve was leaking, but unfortunately the Endurance bypass valve was never in focus so it's hard to tell if it was smooth or ripply. I want to say it's smooth based on the consistent reflections, but cannot say for sure. Worth noting that the valve is blue, while the ripply valves are black.

 

[ZeeOSix]

I know you jest but the Pakistani handmade filters actually have integrated bypass valves and wouldn't have this issue

View attachment 240885

A close-up of those end caps looks like they have a fake bypass valve tower with no visible bypass valve present. One way to make 'em leak tight. They might want to back-off on the glue volume too.

 

[ZeeOSix]

This might be old news, but the Fram Ultra tested by Brand Ranks looks like it has a ripply leaf spring:

Zoomed in does show ripples.

 

[Ronn]

I now await for Mitsuman47 to post his UOA with particle analyses using an Endurance filter including flashlight test.
It’s about as close as we’re going to get until BR or another lab does it….and I don’t see that coming any time soon…if ever!

 

[ZeeOSix]

I now await for Mitsuman47 to post his UOA with particle analyses using an Endurance filter including flashlight test.
It’s about as close as we’re going to get until BR or another lab does it….and I don’t see that coming any time soon…if ever!

As mentioned many times, one PC doesn't mean a lot without another under controlled conditions to compare it to. How else are you going to conclude anything without a control baseline?

 

[Ronn]

As mentioned many times, one PC doesn't mean a lot without another under controlled conditions to compare it to. How else are you going to conclude anything without a control baseline?

Yes, only a single test and “anecdotal”. But it will be the only one to date (that I’m aware of) that will give data on filtration AND status of bypass.
If it’s negative on light test, we won’t learn much, but if it demonstrates a leak, it will at least give us some perspective as to impact on filtration. So no, it’s not a “scientific” endeavor, but for me it will be very meaningful.
BTW, I encouraged him to do multiple tests, since he has multiple filters from the same batch (date of manufacture).

 

[Ronn]

Deleted. Double post

 

[KevinMalone]

I believe both the Endurance and Ultra are rated at 99%+ >20 microns, yet the Endurance particle counts were quite a bit lower. The implication is that the Ultra's bypass valve was leaking, but unfortunately the Endurance bypass valve was never in focus so it's hard to tell if it was smooth or ripply. I want to say it's smooth based on the consistent reflections, but cannot say for sure. Worth noting that the valve is blue, while the ripply valves are black.

Sorry, playing catch up here. Just realized that even the smooth leaf springs can also have gaps based on Whip City Wrencher's video:

So I guess it's safe to assume that both the Ultra and Endurance in BR's test had some level of leaking, albeit the Ultra likely had more due to the ripply leaf spring if the Endurance had a smooth leaf spring. I guess this is reflected in their particle count results, where the Ultra had more particles relative to the Endurance:

 

[CharlieBauer]

Sorry, playing catch up here. Just realized that even the smooth leaf springs can also have gaps based on Whip City Wrencher's video:

View attachment 240894

View attachment 240896

So I guess it's safe to assume that both the Ultra and Endurance in BR's test had some level of leaking, albeit the Ultra likely had more due to the ripply leaf spring if the Endurance had a smooth leaf spring. I guess this is reflected in their particle count results, where the Ultra had more particles relative to the Endurance:

View attachment 240895

Don't forget the Royal Purple which was the worst one. I calculate the RP as about 91% efficient for ALL particles in the range 20 to 40 microns.

 

[Fair enough]

That's an insane level of ripples Looks like they are being pounded out by hand in a dirt floor shop in Pakistan as seen on YouTube.

the bump at 2 o’clock lifts the whole side up. There are more bumps than that. I can see the gap without the light from inside.

 

[ZeeOSix]

BTW, I encouraged him to do multiple tests, since he has multiple filters from the same batch (date of manufacture).

If they are all from the same batch, then they will most likely all have the same good or bad leaf spring seal. Only "wrinkle" might be if there are multiple leaf spring stamping machines and some make ruffled leaf springs and others don't.

 

[ZeeOSix]

Sorry, playing catch up here. Just realized that even the smooth leaf springs can also have gaps based on Whip City Wrencher's video:

Missing the "flat" requirement. Metal-to-metal seals only work (as good as possible) when both surfaces are flat and smooth on each side of the interface/surfaces. Gotta have both to work right.

 

[Chumango]

I think the calculation if pretty close based on the size of the gaps given by @Glenda W. (2 gaps, each at 0.020 by 0.75 inch in size) and the assumed filter flow and dP parameters used. That was modeling it like two individual very long thin rectangles with a discharge coefficient of essentially 0.50 and a small 0.8 PSI dP.

Ever hear the one about the responses from an engineer and a physicist when they were each told "Every time you move towards that beauty queen, you can only move half the distance to her. The first one that gets there will get to go on a date with her". The physicist threw up his hands and said I give up right now, because that means I'll never get there if I can only move half way towards her ever time I move". The engineer said "I can get there close enough for practical purposes."

The calculation was based on using a round orifice. A very high aspect ratio slot would have a much smaller hydraulic diameter, which would affect the results.

Yes I have heard that joke before. Being an engineer, I have used that joke or similar to it a number of times. The way I have heard it told and that I have told it is with men and women standing on opposite sides of a dance floor and told to advance half the distance between them each time the music stopped. The mathematicians, or physicists in this case, threw up their arms and left knowing that they would never get there. But the engineers stayed knowing that they would get close enough for a practical application.