- Laboratory Test Performance per ISO 454812: 18 Grams Dirt (NAPA Gold # 1515), 99% Efficient At 23 Microns (Based On NAPA Gold # 1515, 1356, 7060)
- Cut n pasted from their website. Used to be 95%@20um.
- Much better efficiency now!its a wix efficiency,but Mann Hummel made.
Napa golds now 99%@23um efficiency!
- Thread starter ziggy
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Who made WIX/NAPA GOLD oil filters before?
Is the FL-400S equivalent still built with the base end bypass?
For me, 99@23um or 95@20um won't/wouldn't influence my purchase decision. Both are good imo. Been using the Napa Gold/(wix) 95%@20 um, for many years now and been happy with post use results. Constuction has been quite good, and that's important.
As for who's making what, as long as I can identify manufacturer really making the filter, I will. The Wix US factory is in one location, Purolator US in another. While Wix internals have been making changes recently more closely resembling Purolator, there are still tell tail signs like baseplate design and date code which distinguish manufacturer. That could change at some point, but anecdotes posted here haven't reached that point, at least to my eye.
As for who's making what, as long as I can identify manufacturer really making the filter, I will. The Wix US factory is in one location, Purolator US in another. While Wix internals have been making changes recently more closely resembling Purolator, there are still tell tail signs like baseplate design and date code which distinguish manufacturer. That could change at some point, but anecdotes posted here haven't reached that point, at least to my eye.
I’m guessing they’re just using the pure one media in the wix now since they’re all under the same company. The only thing I don’t like are the prices they charge. $11 for a 57356 at oreillys and even higher for the 7356 at Napa; same for the pure one. Too much in my opinion.
It has been 99% @ 23 microns for a few years, nothing new here. The thread title title you created states "Napa golds now 99%@20um efficiency" and then post 99% @ 23 microns. So where are they reporting anything other than 99% @ 23 microns???
It's weird, there's been some "clickbait" thread title errors lately, too many to be accidents...
Just looked up Wix/(NG) beta for the 5/7356, an application I use, still shows 95%@20um. Perhaps not updated, who knows. Yes, title not consistent with OP info. However, either way both very respectable.
Not going speculate on whether media now the same for both manufacturers either. Not enough information to me to make that leap. I've got some Bosch Prem. that rate 99% @20um, definitely made by Purolator. Not being clairvoyant, not going say what may happen in the future. For now, I'll continue to identify manufacturer distinction.
Not going speculate on whether media now the same for both manufacturers either. Not enough information to me to make that leap. I've got some Bosch Prem. that rate 99% @20um, definitely made by Purolator. Not being clairvoyant, not going say what may happen in the future. For now, I'll continue to identify manufacturer distinction.
Time to make the decision and go with the one you like best? It's a lot of time to spend on deciding which oil filter, but of course look at all the time people spend posting about it. Including me. But it's your freedom to take as long as you want to decide. Maybe this was just an announcement, not a decision what you want to use. America, what a great country.
WIX made WIX/NAPA Gold before Mann+Hummel bought them. Now WIX still makes WIX, but WIX (and also Purolator - aka, Wixolator) is owned by Mann+Hummel who seems to want to change the design of the WIX/NAPA and Purolator filters to some degree. I don't know of any WIX or NAPA Gold filters that still have the base end bypass valve setup ... might be some left.
A couple months ago I stocked up on some WIX 51516 and they showed up in the older style: round holes in the center tube, coil spring in the dome and baseplate-end bypass. Feeling like I got lucky they aren't the new design... not that my engine would blow up lol. I just like the older design features better.
I agree, the last time I ordered WIX 57055 from Rock Auto I got one old design filter (which I love) and eight Purolated version filters which I am not as much of a fan of. I will use every one of them but I just find it disappointing that they took what I considered to be an industry leading design that brought them a lot of success and took a
on it. I feel the same way about the changes that Fram has made to the Ultra media and ADBV of other can filter products, big turn off for me.^^^ Yes, it seems most filter makes are cutting corners as much as they can to cut manufacturing costs, and some of those changes make the product seem to be at a lower design standard and/or cheaper in quality. Even being seen in some air filters (see the air filter forum).
Awesome replies! I've cut open a few Napa holes in over over the years.great filters in terms on construction. Spring at bottom of filter.though I've been ead, they've done away with that now.
The goods do,have that valve at threaded end of filter,in/under the anti drain back valve.
Years ago,some here thought,felt,they could leak contaminated oil back into filtered area of filter.
Whats everyone's thoughts on that valve?
The goods do,have that valve at threaded end of filter,in/under the anti drain back valve.
Years ago,some here thought,felt,they could leak contaminated oil back into filtered area of filter.
Whats everyone's thoughts on that valve?
Having used many Wix/Napa Gold with the traditional thread end bypass, I would 'not' be included in the "some" with that assumption. If one has ever cut open a Wix/Napa Gold, you can see for yourself how far the element and baseplate protrudes out of the can from the dome coil spring pressure. I'm confident that pressure more than enough to hold and seal everything tight, including bypass to endcap.
That said, unlike some apparently, I don't too worked up about a move to dome bypass or the use of a flat spring. Fact is most filters use that set up and it works fine too. As long as the element/media stay intact and filters like it supposed to over the fci, works for me. No doubt it is a cost saving move though. If one has ever looked a Wix/Napa Gold thread end bypass piece, I could see that being a significantly more costly bypass type.
Are Napa golds still USA made as well?or china?
Might depend on the filter model ... it's a constant moving target and hard to keep track of.
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