Question on Napa Platinum filter change interval

Status
Not open for further replies.
M

MoreCowbellAz

Joined
Feb 5, 2015
Messages
359
Location
Phoenix, Az
I really don't want to stir up the hornets nest, but I currently have a Napa Platinum in my daughter's Kia Soul 1.6L that I do 10k OCI's on. I've read all the arguments on this filter's efficiency (or lack thereof), but answer me this: Given the fact that filter efficiency increases with use wouldn't it make all the more sense to run this filter right up to its 15k rating or even a bit beyond? Seems like you're not doing any favors by swapping this filter out any earlier than you absolutely have to.

FWIW in the past I've run even mid tier paper filters in this car for 10k and they always come out looking good with not much crud at all. I understand this is unscientific and doesn't prove if a filter is in bypass, just saying this engine doesn't seem to torture filters.
 
I don't buy that the Platinum is only as efficient as a piece of cheesecloth. It doesn't make sense to me that a company like Wix who makes great filters and are one of the most respected names in the filter business would turn a filter loose as their premium product that was substandard.
Change it at 10K with the oil and forget it.
 
I've been running my Platinums through two 8K OCIs and feel good about it!..... 1.6. I'm of the belief that the filter is better the second time around........Miata M1 0w-30AFE
 
Last edited:
According to some previous discussion here, the efficiency increases with the filter loading. So, the WIX syn is a great reliable filter that doesn't filter great at first, but becomes a great all around filter by the end of however many miles oci. I don't know, not my claim, just following the logic of people that can't make up their minds.

The only thing that troubles me is a standard wix does 10-15k mi with no sweat, what is the premium wix filter capable of? If I had a wix syn/napa plat and a good clean engine, it would sit in there for 20k mi at the very least. If it was a PO$ throwaway clean engine, 35-40k just to see and prove/disprove the true meaning of syn media
smile.gif
 
Originally Posted By: suspiciousmind
I've been running my Platinums through two 8K OCIs and feel good about it!..... 1.6. I'm of the belief that the filter is better the second time around........Miata M1 0w-30AFE


Switch to a Fram ULTRA....do two 8K OCI's, and be over with it.

IMO, the ULTRA is a top-tier superior filter and defiantly a "best buy for the buck".
 
https://bobistheoilguy.com/forums/ubbthreads.php/topics/3870361/Napa_Platinum_41365_and_47356_

In this link, you can see fairly recent UOA's and a filter dissection of two different Napa Platinum filters. These Platinum's were run on my Accord and my wife's Forester.

Both filters stayed on for 2 OCI's...and the UOA is of the 2nd of those two OCI's. There are great pics of the filters after they have been cut apart. I think the Subie filter had 12-13k miles on it and the Honda filter around 15k. The exact info can be found in the link above.

These filters can handle 20k miles in a clean engine.
 
Last edited:
Originally Posted By: Trav
I don't buy that the Platinum is only as efficient as a piece of cheesecloth. It doesn't make sense to me that a company like Wix who makes great filters and are one of the most respected names in the filter business would turn a filter loose as their premium product that was substandard.
Change it at 10K with the oil and forget it.


Call WIX and find out for yourself. They will tell you the XP's efficiency rating is 50% @ 20 microns (and therefore the NAPA Platinum also since they are the same guts). Many here thought it was some kind of mis-print on their website, but their Tech Line guy will assure you their number is correct.
 
Facts are facts, and when Wix says 50% that's what it is, like it or not, think otherwise or not, it is 50%. On the other hand people are fast to condemn the Toyota filter because a competitor, not the maker, tested one filter in 2011 and made a graph showing it at 51%. The competitors filter won on the graph of course. When I found Purolator rated the Bosch Distance Plus at 40 microns I wasn't too happy about it, but those are the facts. Now we have a situation with the new Purolator filters, where they avoid the micron rating entirely. I know many people are just going to see the 99% and assume it is the same as other makers. At least Wix is forthright about their numbers. 50% at 20 may be about the same as 99% at 40.
 
Originally Posted By: goodtimes
Facts are facts, and when Wix says 50% that's what it is, like it or not, think otherwise or not, it is 50%. On the other hand people are fast to condemn the Toyota filter because a competitor, not the maker, tested one filter in 2011 and made a graph showing it at 51%. The competitors filter won on the graph of course. When I found Purolator rated the Bosch Distance Plus at 40 microns I wasn't too happy about it, but those are the facts. Now we have a situation with the new Purolator filters, where they avoid the micron rating entirely. I know many people are just going to see the 99% and assume it is the same as other makers. At least Wix is forthright about their numbers. 50% at 20 may be about the same as 99% at 40.


I will have the Purolator boss efficiency this week I hope. It will he "unofficial" but will be iso 4548-12 testing
 
Originally Posted By: goodtimes
Facts are facts, and when Wix says 50% that's what it is, like it or not, think otherwise or not, it is 50%. On the other hand people are fast to condemn the Toyota filter because a competitor, not the maker, tested one filter in 2011 and made a graph showing it at 51%. The competitors filter won on the graph of course. When I found Purolator rated the Bosch Distance Plus at 40 microns I wasn't too happy about it, but those are the facts. Now we have a situation with the new Purolator filters, where they avoid the micron rating entirely. I know many people are just going to see the 99% and assume it is the same as other makers. At least Wix is forthright about their numbers. 50% at 20 may be about the same as 99% at 40.


But that's only single pass. AFAIK my oil goes through the filter more than once per cycle.
Personally i think its a bunch of bovine excrement.
 
Originally Posted By: Dyusik
The only thing that troubles me is a standard wix does 10-15k mi with no sweat, what is the premium wix filter capable of? )


That's a pretty good summation of where I'm coming from. I'll routinely do 10k on a standard Wix, so from a logic point of view if a filter is actually designed for 15k it wouldn't seem like a stretch to push it to even 20k, especially since filters benefit from some loading and even more so if the overall efficiency is in question to begin with. I have no idea on the latter, but again from a logic point of view if you hypothetically assume worst case that the efficiency lacking then all the more reason to try to run it as long as possible in the loaded aka the higher efficiency part of the curve.

And I do get the "just get an Ultra and be done" point, in fact a have one on deck for this car. I'm just contemplating what I want to do with the Platinum that's in it now, sawp it in the upcoming 9-10k OCI or let it run for another OCI since it should be now hitting it's stride. I'm kinda leaning towards leaving it in but I like to hear more informed points of view than my own.
 
Originally Posted By: Trav
I don't buy that the Platinum is only as efficient as a piece of cheesecloth. It doesn't make sense to me that a company like Wix who makes great filters and are one of the most respected names in the filter business would turn a filter loose as their premium product that was substandard.
Change it at 10K with the oil and forget it.



I don't buy it either....I can't see Wix selling such a low efficiency filter as their top of the line unit.
 
Trav, PBM, it's true that it's 50% efficient. I had someone with access to iso 4548-12 equipment test it and it's exactly what the beta ratios are barely 50% @20 microns. The media itself is capable of over 90% efficiency but they aren't constructing them like they should.

When the tester put a higher quality can, adbv, and bypass valve onto the Wix XP internal cartridge the same iso 4548-12 testing showed 90%+ efficiency revealing internal leakage issues.

This issue was discussed heavily in the past and I know just mentioning this will rehash all that but I can't give out any specifics other than I have. I'm trying to get the Purolator boss efficiency through the same channels.
 
Originally Posted By: pbm
Originally Posted By: Trav
I don't buy that the Platinum is only as efficient as a piece of cheesecloth. It doesn't make sense to me that a company like Wix who makes great filters and are one of the most respected names in the filter business would turn a filter loose as their premium product that was substandard.
Change it at 10K with the oil and forget it.



I don't buy it either....I can't see Wix selling such a low efficiency filter as their top of the line unit.



Wix themselves stated that the Wix/Napa Gold is their "top" filter. They just consider the Platinum as their extended drain filter.
 
Originally Posted By: Trav
But that's only single pass. AFAIK my oil goes through the filter more than once per cycle.
Personally i think its a bunch of bovine excrement.


What's single pass? When I called WIX they wouldn't even tell me what test spec they used. ISO 4548-12 is a multi-pass test.
 
Originally Posted By: 901Memphis
I will have the Purolator boss efficiency this week I hope. It will he "unofficial" but will be iso 4548-12 testing


ISO testing in the Bat Cave.
whistle.gif
 
Originally Posted By: ZeeOSix
Originally Posted By: 901Memphis
I will have the Purolator boss efficiency this week I hope. It will he "unofficial" but will be iso 4548-12 testing


ISO testing in the Bat Cave.
whistle.gif

More like Motoking using him to spread rumors about competitors.
 
Status
Not open for further replies.

Similar threads

T
Oil Filter Media Area Database
Replies
17
Views
341
fantastic
ZeeOSix
The Myth of "Flow Over Efficiency"
2 3
Replies
41
Views
2K
ZeeOSix
Y
Filter Opinions? RP vs Amsoil - Worth using larger filter?
Replies
5
Views
1K
yashi
H
Glitter or Bubbles?
Replies
9
Views
370
Marcozi
C
Redline 5w-30 & WIX Filter 6.6k mi; 2021 RAM 1500 5.7L 30k mi
Replies
6
Views
293
OVERKILL
Back
Top Bottom