WIX oil filter 57502 beta info question

I don't understand why they don't list the Wix XP micron rating 🤷🏻‍♂️🤔
It's "propriatary" ... 😄

Last time WIX showed it, it was 50% @ 20μ. If you call them, they will say it's "propriatary" ... that's what I was told. Maybe something has changed since M+H bought them. You should call or email WIX and see what they say now.
 
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It's "propriatary" ... 😄

Last time WIX showed it, it was 50% @ 20μ. If you call them, they will say it's "propriatary" ... that's what I was told. Maybe something has changed since M+H bought them. You should call or email WIX and see what they say now.
I emailed wix about this a few weeks ago for the 51372xp and they said the xp is 99% efficient at 35 microns so i asked them whats the rating at 20 microns and their response was "if you want a 20 micron filter, try the 51372 instead" i asked again that i want the efficiency at 20 microns for the xp filter and they reiterated "Travis, the 51372xp is a 35 micron filter, if you want a 20 micron filter try the 51372"
 
I emailed wix about this a few weeks ago for the 51372xp and they said the xp is 99% efficient at 35 microns so i asked them whats the rating at 20 microns and their response was "if you want a 20 micron filter, try the 51372 instead" i asked again that i want the efficiency at 20 microns for the xp filter and they reiterated "Travis, the 51372xp is a 35 micron filter, if you want a 20 micron filter try the 51372"
Why would you want a 35 filter 20 micron is better am I correct or my lost? 🤷🏻‍♂️🤔
 
I emailed wix about this a few weeks ago for the 51372xp and they said the xp is 99% efficient at 35 microns so i asked them whats the rating at 20 microns and their response was "if you want a 20 micron filter, try the 51372 instead" i asked again that i want the efficiency at 20 microns for the xp filter and they reiterated "Travis, the 51372xp is a 35 micron filter, if you want a 20 micron filter try the 51372"
What WIX told you aligns with what O'Reilly Auto says on their website. But see the link below ... the independent ISO 4548-12 test showed that WIX XP was coming in at 88% at 35u and 62% @ 20u.

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What WIX told you aligns with what O'Reilly Auto says on their website. But see the link below ... the independent ISO 4548-12 test showed that WIX XP was coming in at 88% at 35u and 62% @ 20u.

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More alarming is the fact that the XP efficiency curve doesn’t make 90%, even by 50 microns-that’s really not acceptable for a “premium“ filter.
 
What WIX told you aligns with what O'Reilly Auto says on their website. But see the link below ... the independent ISO 4548-12 test showed that WIX XP was coming in at 88% at 35u and 62% @ 20u.

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Yes! I was just curious if there were any changes made to this filter since that test, also curious if they would tell me anything other than 99% at 35 microns
 
Could someone explain to me how the micron rating works. I know the smaller the micron rating the better the filter. But that's about all I know. 🤷🏻‍♂️ Also what does 90% of 50 microns mean? It sounds like it's only filtering at 90%, in contaminants of 50 microns in size.. but how can that be if the regular Wix does 20 microns. That means the XP is a s***** filter.
 
Could someone explain to me how the micron rating works. I know the smaller the micron rating the better the filter. But that's about all I know. 🤷🏻‍♂️ Also what does 90% of 50 microns mean? It sounds like it's only filtering at 90%, in contaminants of 50 microns in size.. but how can that be if the regular Wix does 20 microns. That means the XP is a s***** filter.
This might help you understand: https://www.donaldson.com/en-us/engine/filters/technical-articles/understanding-beta-ratings/
 
Could someone explain to me how the micron rating works. I know the smaller the micron rating the better the filter. But that's about all I know. 🤷🏻‍♂️ Also what does 90% of 50 microns mean? It sounds like it's only filtering at 90%, in contaminants of 50 microns in size.. but how can that be if the regular Wix does 20 microns. That means the XP is a s***** filter.
Efficiency of 90% @ 50u is just a way of saying that the oil filter removes 90% of all particles that are 50 microns and larger. So that means that 10% of all the particles that are smaller than 50 microns are going through the filter and into the engine's oiling system.

Keep in mind that all oil filters have an efficiency vs particle size performance curve. So If a filter is 90% @ 50u, then it might be 50% @ 15u. Here are some examples of oil filter efficiency vs particle size curves.

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