Which Filter "filters" the best?

[63Avanti]

I admit that watching people cut apart oil filters for the past 25+ years has been amusing, but it really does nothing tangible for me. What is important is how well the filter "filters"!

Here are the facts, as provided by those manufacturers who provided straight data about Beta ratios/ratings.
Comprehensive Study of Published Filter Element Efficiencies
If your favorite filter is missing, then take it up with the manufacturer, do not complain to me, I tried to get the data....

I would be pleased to include any/all filters to this study. I am still open to DIRECT E-MAILS with data from authorized company technical personnel, and/or official URLs with the data. Please do not send me to "customer/tech support", been there, done that, sorry.

 

[unDummy]

So, you're simply quoting manufacturer data?

Did you read the oilfilterstudy.com website a year or two ago? Might still be able to get the data from archive.org

I don't care about MFG 'quoted' specs. I think that UOAs with particle counts, are the only way to test a filter.

Oilfilterstudy.com data was an eye opener for many. Certain filter filter better, flow better, or are a compromise between flow/filtration.

 

[63Avanti]

updated with Amsoil data

 

[Mudcat]

Do you mind posting here in the thread the Wix filter Part Numbers and the published beta ratios you used to create your chart?

Two of the WIX data points that I can locate don't appear to correlate well with your chart:

Ford '89 F150 VB 302 = Wix P/N 51515; B2/20 = 13/23
Kubota L275 = Wix P/N 51068; B2/20 = 10/26
Toyota '99 L4 2.0 4cyl; Wix P/N 51394, no listed beta
Avanti - ?? Beats Me

 

[63Avanti]

Let me re-check, I may have had a typo, I will update the PDF as needed. But just to confirm that I am not making real dumb errors, here is how I convert.

2 micron: Beta 20 == 95.000%
10 micron: Beta 26 == 96.154%
13 micron: Beta 23 == 95.652%

note that both 10 and 13 micron round to 96%. While the 13 micron is lower than the 10 micron, I calculate that the difference is 0.524%, which, to me, looks like well within measurement error.

Do you see an error in my methodology? let me know! thanks!

Quote:

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Do you mind posting here in the thread the Wix filter Part Numbers and the published beta ratios you used to create your chart?

Two of the WIX data points that I can locate don't appear to correlate well with your chart:

Ford '89 F150 VB 302 = Wix P/N 51515; B2/20 = 13/23
Kubota L275 = Wix P/N 51068; B2/20 = 10/26
Toyota '99 L4 2.0 4cyl; Wix P/N 51394, no listed beta
Avanti - ?? Beats Me

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Avanti is 51049, that is found by a long string of historical cross references, and too long a thread by itself...

 

[63Avanti]

Quote:

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Do you mind posting here in the thread the Wix filter Part Numbers and the published beta ratios you used to create your chart?

Two of the WIX data points that I can locate don't appear to correlate well with your chart:

Ford '89 F150 VB 302 = Wix P/N 51515; B2/20 = 13/23
Kubota L275 = Wix P/N 51068; B2/20 = 10/26
Toyota '99 L4 2.0 4cyl; Wix P/N 51394, no listed beta
Avanti - ?? Beats Me

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to take the question a little further, Assuming that I am making the conversion correctly (and expecting someone to correct me if I am not), then the following conversions are correct:

Beta Efficiency
20 95.00%
25 96.00%
30 96.67%
35 97.14%
40 97.50%
45 97.78%
50 98.00%
55 98.18%
60 98.33%
65 98.46%
70 98.57%
75 98.67%
80 98.75%
85 98.82%
90 98.89%
95 98.95%
100 99.00%
105 99.05%
110 99.09%

What I wrestled with, and did not resolve, is how to adequately visibly plot the "action in the last 5%" As you can see, even with a magnifying glass, differences between Betas in this range are tough to plot visibly. (logarithms compress this range, drat!)

 

[Mudcat]

Wow. That was a lot of typing but my original question still stands. Do you mind posting here in the thread the Wix filter Part Numbers and the published beta ratios you used to create your chart? No calculations necessary, just the raw data. Four filter part numbers and four sets of beta ratios.

P/N 12345; Bxx/yy = xx/yy

 

[63Avanti]

Quote:

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Wow. That was a lot of typing but my original question still stands. Do you mind posting here in the thread the Wix filter Part Numbers and the published beta ratios you used to create your chart? No calculations necessary, just the raw data. Four filter part numbers and four sets of beta ratios.

P/N 12345; Bxx/yy = xx/yy

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you already provided them, it seemed redundant to repeat.

I am more interested in finding holes in my methodology, than rehash data you already had.

oh, I do see that you missed the hydraulic filter
51367 2/20=12/24 enjoy!

 

[Mudcat]

Quote:

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you already provided them, it seemed redundant to repeat.

I am more interested in finding holes in my methodology, than rehash data you already had.

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Thanks for clarifying.

If the above information is your starting point, at least with respect to the Wix data, you have miscalculated.

Wix P/N 51515; B2/20 = 13/23; 50% @ 13µ ; 95% @ 23µ
Wix P/N 51068; B2/20 = 10/26; 50% @ 10µ ; 95% @ 26µ
Wix P/N 51367; B2/20 = 12/24; 50% @ 12µ ; 95% @ 24µ

 

[63Avanti]

hmmmm,
you could be right. I have put queries to the filter manufacturers, and to Noria and Hydrax for clarifications. I will be back with corrections, or explanations.

In the interim, i have replaced the study at the URL above with a notice that I have pulled the data until it can be corrected and/or validated.

 

[drewjp]

Amsoil, Mobil 1, and Purolator PureOne would probably be the best at filtering.

This is strictly based on the UOAs I've seen.

 

[63Avanti]

The oil filter study is back on-line. Edits made.

 

[remmious]

Just to through this out there for easier future use. Here is an example to keep things simple.

Beta 75: (75-1)/75 => 74/75 = 98.67%

Beta 50: (50-1)/50 => 49/50 = 98.00%

Beta 200: (200-1)/200 => 199/200 = 99.5%

It's just a ratio of how well it filters a number of particles upstream versus down stream. So in the first example if they put 75 known particles upstream of the filter, it will take them all out except 1. All you need to do is subtract the 1 from the beta ratio to get the percent.

Another side not, it doesn't seam like much (98.67% vs. 99%) but when you are talking millions of particles it makes a world of difference.

 

[remmious]

Sorry I'm chattering now, but to give more FYI for people who don't know. If you don't know what micron they are referring to, the beta ratios and effeciencies don't mean squat.

A filter can have 98% (beta 50) at 40 micron but only be a 96% (Beta 25) at 15 micron. So you have to compare apples to apples for this information to mean anything. I've seen a few filters claim the 98% while competitors were 96% without giving micron ratings. Are they lying, probably not but they are misleading.

 

[remmious]

Avanti, I see you posted the same on Noria but I see what you are after. The number that subscripted by the "B" for beta ratios is the micron rating. For example:

B5 = 75 means it was rated at 5 micron and achieved a Beta 75 rating.

Your's has dual ratings (2 and 20 micron as you stated) So you are correct in how you put those numbers out there.

Sorry for all the confusion on my part.

 

[63Avanti]

remember, this is still in "peer review", I need corrections.

And, BTW, does anyone have contacts with other Filter companies?