I 100% agree, and this is one of my many gripes with BR testing. BR should have at minimum repeated all of his tests to even see if his results were repeatable. Basics of testing.
Fram Endurance vs Purolator Boss oil filters
- Thread starter Scott S
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Here's a possible reason why the Boss ranked 3rd. Maybe all the Champ Labs & Fram made filters with a metal-to-metal leaf spring seal (Amsoil, Endurance, Royal Purple, Ultra) had the ruffled leaf springs with air gaps seen lately with enough leakage to hurt their efficiency and brought them down to the Boss efficiency level. How all of those filters ranked (all in the top 5) was dependent on how much dirty oil was leaking past the ruffled leaf spring seal. The Boss has the bypass valve built into the end cap. Would have to go back and watch all the BR videos to get the final PC count data on each to compare. Would also be interesting if they could have tested an OG Ultra with the fiber leaf spring seal to see how it ranked.
And yes, it would be interesting to see the testing repeated to see how consistent the results are. They should have also included the PC data below 21u (the 4u, 6u and 14u particles) since that's part of the ISO particle count test.
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When I looked at the Endurance filters at my local walmart the cans paint were all scuffed up (paint into a powder) like they had been rotating around in their designer cardboard box, the can openings weren't plastic sealed so I passed.
This winters oil change I purchased a Boss filter but wasn't impressed with the core louvers but I figured it had to better than the FL820s Ive found ripped during inspection.
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This winters oil change I purchased a Boss filter but wasn't impressed with the core louvers but I figured it had to better than the FL820s Ive found ripped during inspection.
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If the louvers are open the Boss should be good to go.
Haters will hate
Hate is a strong word. More like disappointed in the procedure.
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How do you come to that conclusion? Show us official ISO numbers comparing specific filters to any other brands filters. Do you know what they are?PLB is a rock catcher when it comes to efficiently
Its 46u at 99% from official specs. Use search for references
Yes, I've posted several of them here. What other filter brand are you comparing it to though?
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Fram ultra and endurance as an example. I am not going to restart argument of PLB vs fram endurance efficiency
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On the Purolator website Boss is “over” 99%@25 microns and the One is 99%@20.
Its been discussed many times, the information on website does not match official specs provided by manufacturer of PLB. The specs are provided in this or other thread, you can also request them directly from manufacturer
I always said “Cummins Ram” when I referenced my ‘02 & ‘06 Rams-A+ engine, C- truck!Still sad to say……maybe say Ram truck
Anything made by Affinia-Wix/NAPA Gold, Mobil 1, and even Carquest Blue! It’s no accident NAPA & CQ/AAP have moved to Premium Guard.
But you said this w/little data...?
Think you meant efficiency?PLB is a rock catcher when it comes to efficiently
But you are just going off the general website spec too for Fram (that also has sometimes been shown incorrect)? I'd love to see a comparison of specific filters like M+H offers from Fram. Could you grab me an official ISO tested Fram XG10415 spec sheet so I can compare the equivalent Purolator Boss to Fram? I'd appreciate it! If you don't have it then how can I know that the Boss I want to run is a "Rock Catcher" as you say? Don't you compare filters to each other or just go by their advertisements & make claims here?
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People emailed fram to get numbers, also independent tests show it. Sure; you can make
Argument that Fram is lying in the email when they provide numbers.
Bottom line Boss official spec is 46um @ 99%, its a fact. I am not going to show you anything, take your filter part number and then email customer support of Fram and PLB and ask for efficiency numbers at 99%, and then report back here
Argument that Fram is lying in the email when they provide numbers.
Bottom line Boss official spec is 46um @ 99%, its a fact. I am not going to show you anything, take your filter part number and then email customer support of Fram and PLB and ask for efficiency numbers at 99%, and then report back here
The Boss is 46um @99% & that is a fact from the spec sheets. You made the bold claim that Boss was a "Rock catcher" w/o knowing specific filter data from Fram? Who does that? You stated your not going to show me the model number Fram I referenced so I'll assume you've not seen the data either.
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I’d bet the Boss is more efficient than a Fram or Champ with gaps in the leaf spring.
I have not come across public specification documents from fram for their filters. I dont think these documents are available for public. People however did email Fram endurance customer support (myself included) to inquire about 99% efficiency, it was somewhere 5-10um @99% (dont recall exact numbers).
Could fram customer support be telling lies? I guess anything is possible.
There is also Ascent ISO test results as a secondary info. Thats all we got I think.
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