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Highest flow filter? #5311130 01/02/20 02:08 PM
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mpgo4th Offline OP
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I contacted Wix about the Napa line for my Expedition. I asked them which filter had the highest oil flow rate?
1. 41372 Platinum
2. 1372 Gold
3. 21372 ProSelect

The lady told me that the threaded hole diameter is the same so they all have the same flow rate. That doesn't sound right to me. How does one filter list as stopping smaller microns but flow the same? Also the said they couldn't give me the micron rating of the Proselect because it was proprietary.

I want the filter that will get oil to the heads the fastest in my truck, which one would that be from the ones listed?

Re: Highest flow filter? [Re: mpgo4th] #5311134 01/02/20 02:10 PM
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kschachn Offline
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Originally Posted by mpgo4th
I want the filter that will get oil to the heads the fastest in my truck, which one would that be from the ones listed?

So you're saying the filter media determines that?


1994 BMW 530i, 251K
1996 Honda Accord, 280K
1999 Toyota Sienna, 430K
2000 Toyota ECHO, 284K
Re: Highest flow filter? [Re: mpgo4th] #5311137 01/02/20 02:10 PM
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CT8 Offline
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They will all get the oil to the heads at the same time all things equal.


2015 F150 2.7
2018 F350 6.2
Re: Highest flow filter? [Re: mpgo4th] #5311149 01/02/20 02:24 PM
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LeakySeals Offline
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Cheapest filter you can buy?


06 Escalade 6.0L LQ9 AWD 170k M1 5w30
03 Maxima 3.5L 170k Maxlife HM 10w30
05 Malibu Classic 2.2 111k M1 5w30
06 Altima 2.5L 167k unk
Re: Highest flow filter? [Re: kschachn] #5311161 01/02/20 02:35 PM
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mpgo4th Offline OP
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Originally Posted by kschachn
Originally Posted by mpgo4th
I want the filter that will get oil to the heads the fastest in my truck, which one would that be from the ones listed?

So you're saying the filter media determines that?


I was asking, indicated by the question mark.

Re: Highest flow filter? [Re: mpgo4th] #5311178 01/02/20 02:54 PM
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kschachn Offline
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Oh I thought the question mark was about which oil, and that you had already come to the conclusion that the filter media had a primary impact on the pump output.


1994 BMW 530i, 251K
1996 Honda Accord, 280K
1999 Toyota Sienna, 430K
2000 Toyota ECHO, 284K
Re: Highest flow filter? [Re: kschachn] #5311191 01/02/20 03:09 PM
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mpgo4th Offline OP
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Originally Posted by kschachn
Oh I thought the question mark was about which oil, and that you had already come to the conclusion that the filter media had a primary impact on the pump output.


Just trying to wrap my head around how filter can stop more or less of something and still flow the same. shrug

Re: Highest flow filter? [Re: mpgo4th] #5311206 01/02/20 03:30 PM
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VQ35DE Online Content
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Platinum has the highest flow rate. Same filter as Wix "XP" filter line. I use them all the time on my truck.


2017 Mazda CX-5 GS AWD
Re: Highest flow filter? [Re: mpgo4th] #5311212 01/02/20 03:34 PM
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Bottom_Feeder Offline
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The filter is not the bottleneck of an engine's oiling system so flow rate doesn't matter. Whatever it is, it's high enough.

Re: Highest flow filter? [Re: mpgo4th] #5311250 01/02/20 04:11 PM
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krismoriah72 Offline
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Since you called Wix.. i went on NAPAs website where the data is listed on each filter.
Also since Wix wouldnt tell you the Micron Rating of the ProSelect..it is listed on NAPAs site as well its 21
Below are the links to each filter.




41372 Platinum Flow Rate is 11-13 GPM https://www.napaonline.com/en/p/PFL41372 21 Micron
21372 Flow Rate is 11-13 GPM https://www.napaonline.com/en/p/PSW21372 21 Micron
1372 Flow Rate is 11-13 GPM https://www.napaonline.com/en/p/FIL1372 21 Micron


Unknown if data is correct, but it is listed.

Re: Highest flow filter? [Re: mpgo4th] #5311253 01/02/20 04:12 PM
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Bryanccfshr Offline
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The surface area of the filter is much larger than the primary oil channel. The lady you talked to at Wix knew what she was talking about.

If a large enough pressure differential develops between the dirty and clean side, the bypass activates. So even an abused over extended clogged up filter will provide flow.

Last edited by Bryanccfshr; 01/02/20 04:15 PM.

2018 Trd Pro 4Runner
2018 Tacoma off-road

Dealer 0w20 to M1 0w40 FS -it depends
Re: Highest flow filter? [Re: mpgo4th] #5311310 01/02/20 05:06 PM
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SubieRubyRoo Offline
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+1 kschachn & bryan. Positive displacement pumps don't care about filter media.

Originally Posted by Engineering Toolbox
A Positive Displacement Pump, unlike a Centrifugal or Roto-dynamic Pump, will produce the same flow at a given speed (RPM) no matter the discharge pressure.


End of story.

Re: Highest flow filter? [Re: krismoriah72] #5311354 01/02/20 05:56 PM
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mpgo4th Offline OP
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Originally Posted by krismoriah72
Since you called Wix.. i went on NAPAs website where the data is listed on each filter.
Also since Wix wouldnt tell you the Micron Rating of the ProSelect..it is listed on NAPAs site as well its 21
Below are the links to each filter.




41372 Platinum Flow Rate is 11-13 GPM https://www.napaonline.com/en/p/PFL41372 21 Micron
21372 Flow Rate is 11-13 GPM https://www.napaonline.com/en/p/PSW21372 21 Micron
1372 Flow Rate is 11-13 GPM https://www.napaonline.com/en/p/FIL1372 21 Micron


Unknown if data is correct, but it is listed.




I saw that information.... It's not correct.
Look at the link for the 21372 again. The manufacture part number is 51372 the same filter as the gold.
They are using the same info as the gold to post as proselect.

Re: Highest flow filter? [Re: mpgo4th] #5311398 01/02/20 06:37 PM
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kschachn Offline
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Whether it is correct or not is irrelevant in this application, as noted in the posts above.


1994 BMW 530i, 251K
1996 Honda Accord, 280K
1999 Toyota Sienna, 430K
2000 Toyota ECHO, 284K
Re: Highest flow filter? [Re: VQ35DE] #5311466 01/02/20 07:29 PM
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Originally Posted by VQ35DE
Platinum has the highest flow rate. Same filter as Wix "XP" filter line. I use them all the time on my truck.

Platinum gets my vote also. 2nd Place Proselect.


19' Hyundai Santa Fe 2.4 GDI - Valv Adv. 5w30 / OEM Oil Filter / 6oz Liqui-Moly
20' Kia Soul X-Line 2.0 Multi-port / Pennzoil Gold 5W30 / OEM filter
04' Colorado 3.5 Castrol Edge 0W40 / K&N filter
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