Is there much of a filtering efficiency difference between the Napa Gold vs Silver filters?
Gold vs Silver?
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Taken from a Tractor forum, here's NAPA's response:
NAPA Silver oil filters features include:
1. Cellulose filtering media – removes dirt and contaminants from engine oil.
2. Perforated lock seam steel center tube – ensures stable element support.
3. Metal end caps – provides a positive seal to prevent oil by-pass
4. Anti-drain back valve (where applicable) – prevents engine damage due to dry starts.
5. Safety by-pass valve (where applicable) – eliminates oil starvation due to a clogged filter or cold starts.
6. Coiled steel support spring – provides maximum sealing protection in case of pressure surges.
7. Limited warranty.
NAPA gold oil filters besides sharing feature/benefit points 3, 4, 5, 6, and 7, additional premium – only features/benefits include.
1. Fiberglass enhanced media – has 50% more contaminant hold capacity than NAPA Silver – Capture more smaller, potentially engine damaging contaminants.
2. Extra strong steel spiral center tube – provides superior collapse protection.
It looks like hold capacity, better media and extra collapse protection. I'm not sure of the micron ranges of either one, can't imagine it's that much better. If you're not running extended drain intervals I'm not sure it's worth every cent to get the Gold. What's the price difference for your engine?
NAPA Silver oil filters features include:
1. Cellulose filtering media – removes dirt and contaminants from engine oil.
2. Perforated lock seam steel center tube – ensures stable element support.
3. Metal end caps – provides a positive seal to prevent oil by-pass
4. Anti-drain back valve (where applicable) – prevents engine damage due to dry starts.
5. Safety by-pass valve (where applicable) – eliminates oil starvation due to a clogged filter or cold starts.
6. Coiled steel support spring – provides maximum sealing protection in case of pressure surges.
7. Limited warranty.
NAPA gold oil filters besides sharing feature/benefit points 3, 4, 5, 6, and 7, additional premium – only features/benefits include.
1. Fiberglass enhanced media – has 50% more contaminant hold capacity than NAPA Silver – Capture more smaller, potentially engine damaging contaminants.
2. Extra strong steel spiral center tube – provides superior collapse protection.
It looks like hold capacity, better media and extra collapse protection. I'm not sure of the micron ranges of either one, can't imagine it's that much better. If you're not running extended drain intervals I'm not sure it's worth every cent to get the Gold. What's the price difference for your engine?
NAPA's site doesn't give much info on the Silver other than it's good when using conventions oils up to 5k, and they use that weird formula for the Gold being 2/20=6/20. This based on the 1036/1040.
But O'Reilly's has some better info if the MicroGard = Silver and Wix = Gold. I think there has been some discussion on whether they are identical but don't remember the outcome.
MicroGard, 95% efficient at 29 microns
Wix, 99% efficient at 23 microns
But O'Reilly's has some better info if the MicroGard = Silver and Wix = Gold. I think there has been some discussion on whether they are identical but don't remember the outcome.
MicroGard, 95% efficient at 29 microns
Wix, 99% efficient at 23 microns
The Microguard is not the same as the Silver, it is the same a the NAPA Pro-Select, Wix Pro-Tec, current Supertech filters as well as a few others.
There is some filtering difference due to the media type between the Silver and Gold, but as said, hard to track down accurate numbers. You also have the differnce between the nitril ADV in the Silver and silicone in the Gold. Maybe different center tube construction?
There is some filtering difference due to the media type between the Silver and Gold, but as said, hard to track down accurate numbers. You also have the differnce between the nitril ADV in the Silver and silicone in the Gold. Maybe different center tube construction?
Originally Posted By: blupupher
The Microguard is not the same as the Silver, it is the same a the NAPA Pro-Select, Wix Pro-Tec, current Supertech filters as well as a few others.
There is some filtering difference due to the media type between the Silver and Gold, but as said, hard to track down accurate numbers. You also have the differnce between the nitril ADV in the Silver and silicone in the Gold. Maybe different center tube construction?
I emailed WIX a while back and they confirmed the MG was identical to the Silver. I've not personally cut them open and compared though.
Judging by the price, I'd say the Supertech is the ProSelect though.
The Microguard is not the same as the Silver, it is the same a the NAPA Pro-Select, Wix Pro-Tec, current Supertech filters as well as a few others.
There is some filtering difference due to the media type between the Silver and Gold, but as said, hard to track down accurate numbers. You also have the differnce between the nitril ADV in the Silver and silicone in the Gold. Maybe different center tube construction?
I emailed WIX a while back and they confirmed the MG was identical to the Silver. I've not personally cut them open and compared though.
Judging by the price, I'd say the Supertech is the ProSelect though.
I always use the gold/wix, found good prices
http://www.fleetfilter.com/
Or
http://www.discountfleetsupply.com/filters.html
http://www.fleetfilter.com/
Or
http://www.discountfleetsupply.com/filters.html
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The MG, ST, NAPA Silver, & ProSelect all use combo valve technology (on all but the tiny filters)-that's enough for me to use a better grade, or limit them to 3-5K OCIs. Even the newer Ecores are a better choice, as long as they use a poppet style bypass.
The second page of this document has figures at 25 microns published by Champion Laboratories
https://drive.google.com/file/d/0Bz2NTEAdC4vxdDNXV05Yc0FHUGczaVRTeF9qb0FuTWt2bXRF/view
(Note the CQ filters are no longer manufactured by Wix)
Extrapolation yields 69% at 20 microns for the various installer level filters manufactured by Wix
https://drive.google.com/file/d/0Bz2NTEAdC4vxdDNXV05Yc0FHUGczaVRTeF9qb0FuTWt2bXRF/view
(Note the CQ filters are no longer manufactured by Wix)
Extrapolation yields 69% at 20 microns for the various installer level filters manufactured by Wix
Originally Posted By: Camprunner
Is there much of a filtering efficiency difference between the Napa Gold vs Silver filters?
From my own observations, the gold has around seven more pleats and silicon ADBV versus nitril "combo" valve.. Only physical differences I saw.
Is there much of a filtering efficiency difference between the Napa Gold vs Silver filters?
From my own observations, the gold has around seven more pleats and silicon ADBV versus nitril "combo" valve.. Only physical differences I saw.
Quote:
The MG, ST, NAPA Silver, & ProSelect all use combo valve technology (on all but the tiny filters)...
Not really. Some of the larger applications use either Wix traditional thread end bypass or a dome end bypass. Some of the larger and smaller do use a combo valve, so size doesn't seem to be the main factor. Examples include the larger MG 51393 posted here uses a Wix thread end bypass. MGL 51334 (3593a/9688 equiv) use a dome end coil spring bypass. In Super Tech the popular 3614 and 9688(7317 equivalent) both use a dome end coil spring bypass. The smaller ST6607 uses a combo valve. 'In my observation' seems to be no rhyme or reason to the choice for combo valve.
For ~5k miles conventional oil oci, I'd have no problem using any of the equivalents to MGL51334, MGL57356, MGL51348, all use dome end coil spring bypass.
That said, obtaining Napa Gold with silicone adbv and separate bypass at semi annual Napa Gold sale for <$4, generally makes that a moot point.
The MG, ST, NAPA Silver, & ProSelect all use combo valve technology (on all but the tiny filters)...
Not really. Some of the larger applications use either Wix traditional thread end bypass or a dome end bypass. Some of the larger and smaller do use a combo valve, so size doesn't seem to be the main factor. Examples include the larger MG 51393 posted here uses a Wix thread end bypass. MGL 51334 (3593a/9688 equiv) use a dome end coil spring bypass. In Super Tech the popular 3614 and 9688(7317 equivalent) both use a dome end coil spring bypass. The smaller ST6607 uses a combo valve. 'In my observation' seems to be no rhyme or reason to the choice for combo valve.
For ~5k miles conventional oil oci, I'd have no problem using any of the equivalents to MGL51334, MGL57356, MGL51348, all use dome end coil spring bypass.
That said, obtaining Napa Gold with silicone adbv and separate bypass at semi annual Napa Gold sale for <$4, generally makes that a moot point.
Originally Posted By: dlundblad
Originally Posted By: blupupher
The Microguard is not the same as the Silver, it is the same a the NAPA Pro-Select, Wix Pro-Tec, current Supertech filters as well as a few others.
There is some filtering difference due to the media type between the Silver and Gold, but as said, hard to track down accurate numbers. You also have the differnce between the nitril ADV in the Silver and silicone in the Gold. Maybe different center tube construction?
I emailed WIX a while back and they confirmed the MG was identical to the Silver. I've not personally cut them open and compared though.
Judging by the price, I'd say the Supertech is the ProSelect though.
Interesting. Everything I have seen shows the MG to be a Pro Select clone, but now that I think about it, I can't recall the last NAPA silver I have seen cut apart.
Originally Posted By: bullwinkle
The MG, ST, NAPA Silver, & ProSelect all use combo valve technology (on all but the tiny filters)-that's enough for me to use a better grade, or limit them to 3-5K OCIs. Even the newer Ecores are a better choice, as long as they use a poppet style bypass.
Hmm, I did not know the Silver used a combo valve. I thought they were still regular ADV with separate bypass.
Like I said though, can't remember the last Napa silver I saw cut open.
Makes me wonder what the real differences between the Silver and Pro-select are?
Funny you mention the e-cores, they also use a combo valve in the size for my truck (PH820).
Originally Posted By: blupupher
The Microguard is not the same as the Silver, it is the same a the NAPA Pro-Select, Wix Pro-Tec, current Supertech filters as well as a few others.
There is some filtering difference due to the media type between the Silver and Gold, but as said, hard to track down accurate numbers. You also have the differnce between the nitril ADV in the Silver and silicone in the Gold. Maybe different center tube construction?
I emailed WIX a while back and they confirmed the MG was identical to the Silver. I've not personally cut them open and compared though.
Judging by the price, I'd say the Supertech is the ProSelect though.
Interesting. Everything I have seen shows the MG to be a Pro Select clone, but now that I think about it, I can't recall the last NAPA silver I have seen cut apart.
Originally Posted By: bullwinkle
The MG, ST, NAPA Silver, & ProSelect all use combo valve technology (on all but the tiny filters)-that's enough for me to use a better grade, or limit them to 3-5K OCIs. Even the newer Ecores are a better choice, as long as they use a poppet style bypass.
Hmm, I did not know the Silver used a combo valve. I thought they were still regular ADV with separate bypass.
Like I said though, can't remember the last Napa silver I saw cut open.
Makes me wonder what the real differences between the Silver and Pro-select are?
Funny you mention the e-cores, they also use a combo valve in the size for my truck (PH820).
I found the email! August 2014
Me: "I have read on the internet that WIX makes the Oreilly's MicroGuard filter and the Napa line of filters. Is the MicroGuard more comparable to the Napa Silver or the Napa ProSelect filter? Do you know their efficiency? Thank you."
Them: "The Microgard line that we offer is equivalent to The Napa Silver line. We do not list micron ratings on our Value line filters."
Me: "I have read on the internet that WIX makes the Oreilly's MicroGuard filter and the Napa line of filters. Is the MicroGuard more comparable to the Napa Silver or the Napa ProSelect filter? Do you know their efficiency? Thank you."
Them: "The Microgard line that we offer is equivalent to The Napa Silver line. We do not list micron ratings on our Value line filters."
^^^^Going by that information, the would mean the current WM ST filter is also the same efficiency as Napa Silver because the ST is rated the same as the O'R MG.
Originally Posted By: dlundblad
blupupher said:
Originally Posted By: WillsYoda
Recently there was a BITOG discussion of the best overall filter. Basically, #1 was Fram Ultra. NAPA Gold/Wix was #2. M1 was #3.
Not by a long shot. The Mobil1 Extended performance filters outperform both the Fram (utter [censored]) and Wix/Napa filters.
Recently there was a BITOG discussion of the best overall filter. Basically, #1 was Fram Ultra. NAPA Gold/Wix was #2. M1 was #3.
Not by a long shot. The Mobil1 Extended performance filters outperform both the Fram (utter [censored]) and Wix/Napa filters.
Originally Posted By: udidwht
Originally Posted By: WillsYoda
Recently there was a BITOG discussion of the best overall filter. Basically, #1 was Fram Ultra. NAPA Gold/Wix was #2. M1 was #3.
Not by a long shot. The Mobil1 Extended performance filters outperform both the Fram (utter [censored]) and Wix/Napa filters.
Lmao. Thanks for waking up from your periodic extended slumber to bring us this tidbit of uselessness.
Originally Posted By: WillsYoda
Recently there was a BITOG discussion of the best overall filter. Basically, #1 was Fram Ultra. NAPA Gold/Wix was #2. M1 was #3.
Not by a long shot. The Mobil1 Extended performance filters outperform both the Fram (utter [censored]) and Wix/Napa filters.
Lmao. Thanks for waking up from your periodic extended slumber to bring us this tidbit of uselessness.
RE: "Equivalent does not mean identical."
That is correct. 3 quarters, 3 nickles, and a dime is "Equivalent" to a crisp one dollar bill.
MG is pretty much is the same as a Silver, for all intents and purposes. Same performance, same longevity. etc.
That is correct. 3 quarters, 3 nickles, and a dime is "Equivalent" to a crisp one dollar bill.
MG is pretty much is the same as a Silver, for all intents and purposes. Same performance, same longevity. etc.
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