YOU'RE ABSOLUTELY RIGHT SIR YOU CANNOT TELL THE QUALITY OF THE FILTER BY JUST CUTTING IT OPEN AND LOOKING AT IT. If anyone thinks you can then you can go run them, they're all yours 😉
That “clunky functioning” Wix bypass valve is designed to bypass the oil BEFORE it back washes the dirt from the exterior filter media in the bypass mode.
Sorry your focusing on the wrong things and simply cutting them apart tells you squat without knowing flow rates and backpressure. The very worst thing a oil filter can do is starve the engine from high backpressure that damages both the engine and oil pump. Wix has one of the best reputations out there and looking at the back plate and beefy spring would be my 1st pick hands down.
This was my thought too, he completely glossed over the build quality of the Wix filter without even understanding, or explaining why Wix made it that way.
So I bought a Fram Titanium FS-5 filter specifically because I watched this video. A month and a half ago I did an oil change and installed the brand new Fram filter. I did some work on the engine about a week after the oil change so I just left it alone. I installed a new cam and lifters, timing chain set, valve springs and seals with an Edelbrock TBI intake. Nothing got in the oil and the engine was fairly clean. I started it back up and ran it for a few days but the oil pressure just wasn't right. It normally hits 45~50 PSI cold and it'll drop down to 15 psi when it's hot. I could barely get 30 PSI cold and it would barely keep 10 psi when hot and the check gauges light kept started coming on. I changed the sending unit, I went through the wiring, I even changed the oil again but since the filter was brand new with less than 200 miles on it I didn't change it. Yesterday I pulled the Fram FS5 Titanium off and unfortunately all I had was another Fram extra guard filter to replace it with. I put it on, fired up the engine and it nearly hit 50 psi warming up. Once it warmed up I had a solid 15 psi back. I'm sorry to say after this experience I will never buy another Fram filter again ever. This could have been the end of a perfectly good running engine because of a freaking $12 garbage filter. I still have to cut it open because for the life of me I can't understand how this filter blocked in less than 200 miles.
I've noticed that some oil filters have the circle holes and some have the rectangular holes my concern with the rectangular holes is that it can cause lower oil flows having this design I love the videos keep up the great work
I have used NAPA gold, which used to be made by Wix, for years with no problems that could be traced back to a filter issue. I have had two different cars over the years that the oil light would come on at idle in gear that I repaired by merely replacing the orange Fram oil filter with a NAPA gold.
There are two factors that determine a good filter, Filtration and Flowability. If the filter is too restictive then the oil will just go through the by-pass. Keeping an eye on the condition of the oil tells you if the filter is doing it´s job.
@@handyman1957 I imagine the auto motive industry and filter companies have worked together a long time on filtration and flowability and have come to the conclusion that 25 - 30 micron is the best as most filters are of this micron rating.
Yup, and I got to thinking, if the filter is too restrictive, the better chance of it opening the bypass and then your not getting any filtering at all. @@markwarnberg9504
@@markwarnberg9504 what you're describing applies to old-school surface filtration and the Bosch and Mobil 1 are perfect examples. Mobil 1 (made by mann-hummel) is rated to 20k miles and only removes 30 micron particulates. the Bosch (also made by mann-hummel) is rated for standard oil change intervals (max 10k) and filters down to 20 microns. with traditional filter technology you can have extended drain intervals OR fine filtration - not both. In contrast, depth filtration media (like what's found on the Fram Titanium, Ultra and Endurance) is proven to flow well, have a great contaminant holding capacity and they remove down to 20 microns and smaller. @handyman1957 filters clogging are even needing you go into bypass mode is super rare. even 50 years ago it was uncommon - unless there was an engine issue or the oil and filter were left in service waaaay too long. this comparison is between the top offerings from each brand - so 100% safe for their rated oil change intervals.
For my group yesterday I took apart a Motorcraft 820S, a Fram XG2, and a Microgard Select 51372. And I was a little surprised at the results. The Motorcraft filter has went down in quality and I'd definitely go with the Microgard Select over either one of them. The XG2 was for the money far superior to the MC 820S EXCEPT the filtered oil returns are a lot smaller.
all GM applications that these filters are built for already have an oil bypass valve on the engine. that's why most filters for these engines - including the ones made by GM / AC Delco do not have bypass valves on the filter.
That's what I liked about the Bosch Premium i bought for my Silverado years and years ago but where I got them stopped selling them so back then I switched to AC Delco filters. I'll order a Bosch Premium for this current ride and see if I like how it performs because there's no way it's getting a Motorcraft put back on if i plan on running it very long. The $4 way it was put together was superior to this $8.44 one.
false. what they print on the Purolator boxes isn't accurate. you have to email them to get the actual efficiency for each individual filter. here's the details: bobistheoilguy.com/forums/threads/purolator-99-efficiencies-confirmed-boss-46um-one-30um-pbl24011-pl24011.371384/
Alot of these filter companies are cutting corners using the same part numbers for a inferior product. The filter you bought 4-5 years ago might not be the same as the one today.
That purolator boss is the best filter there. Not sure where the heck you’re getting the filtration numbers from. Its full synthetic media, not to mention the thickest can out of the bunch
the standard AC Delco is a great filter for the $$! this video was intended to compare each companies premium offering - but in another video show how good the standard AC Delco is: ruclips.net/video/sldaP2-gJ0A/видео.htmlsi=B7UBwtVsqNtPfm3S
the problem with all these filters is that they have the steel core with the LOUVERS ISTEAD OF HOLES. Some samples of many brands have been found to have many louvers that are not punched out - no openings!
The "seal" doesn't matter. Like you said-- it's a "spring". Which means that it opens and lets oil bypass at the slightest pulse in pressure. They all do this. The filter can't be allowed to clog like a fuel filter, because it would kill your engine. So they ALL easily allow the oil to bypass by design. Especially the "better" filters that have the ability to catch the finer particles. Bypass is happening regularly.
the filters in this comparison with the finest filtration Bosch and Fram Titanium (and the OEM AC Delco) all do not have bypass valves - because the GM engines that they're designed for already have oil pressure bypass valves. so having another bypass on the filter just isn't needed. i would argue that bypass is happening very very rarely - and that all filters tested are designed to flow well and functionally filter even in the most demanding race applications. oil bypass isn't a normal operational occurrence - it's a failsafe for when routine maintenance isn't performed or unexpected contamination levels occur.
The Purolator Boss filter is much better than what you are claiming. Brand Ranks built a serious test rig and its still at the top of leaderboard. Does it hold up to the 99%+ rating? no because thats unrealistic for us normal people and done outside of a lab.
none of the claims are mine - they are exactly what Purolator states on their data sheets. it's all public information - search for yourself or email them directly. Brand Ranks created some interesting test equipment - but it is NOT the same quality or standards required by certified ISO lab testing
Change your oil every 5K with good oil and filter Thats all it takes to keep a engine healthy Don't cheap out and no need for most expensive for every day driver
I have never heard of an application of a filter where it didn't have an internal bypass it's kind of a safety feature built-in to the filter because unfiltered oil is better than nothing at all
Many cars have the oil bypass in the filter mount, or in the oil pump housing. My 1979 Subaru has the bypass inside the oil pump which is also combined with the oil filter mount. My friend's Oldsmobile 5.7 diesel has the bypass in the oil filter mount. Chevy small and big blocks have the bypass in the mount. I've had a Nissan with it in the mount as well.
Interesting comparison, in my observations you see far more Fram filtered engines in the junkyards that I frequent than other filters. Just an observation. So I personally do not use Fram for anything
@alecchildress4514 this was my specific inquiry: bobistheoilguy.com/forums/threads/purolator-99-efficiencies-confirmed-boss-46um-one-30um-pbl24011-pl24011.371384/
At one time on here many guys were proclaiming Fram were totally crap filters. Are they being made better now than they were? Wix Gold were known to be an excellent choice, so i don't know. I had a 1991 VW Turbodiesel that had 698,714KM on it, when some asshole running a red light totaled it. The engine was still running great and i expected it to go much longer. I used Bosch oil filters until i couldn't buy locally and then switched to Wix Gold. Drove the car daily 220-230 KM Mon.-Fri. and winter temp. MINUS 30F and lower. Conventional oil with VW recommended 8000KM intervals. It would be barely 1/2 Liter off the full mark by then. I don't see the number of pleats meaning much unless you cut them completely open and stretched the media open to compare surface area. Not much of a comparison shown here.
I use the fram Ultras on my car It's a different model number The filter media looks exactly like the one on the titanium It has that reddish pink color. My models an XG918 it's a cartridge style filter so no can
All these WIX fanboys. 😅 I been buying the cheapest filters I can find for yearsssss. Super tech is my go to. No problems whatsoever. If you want to pay $14 for a filter great. Nobody is mad at you 😅
@gr7523 Oh I'm sure an Amsoil dealer has one in a box in their home somewhere. Amsoil should really eliminate the pyramid scheme (multi level marketing) . If their products were on the same retail store shelves as other brands consumers would see them. Problem is, they'd see how expensive they are & likely wouldn't buy them anyway.
i have had L98 powered Corvettes that i've run Wix oil filters on, and cut them open, and had the used oil lab tested. they do make some good filters in my opinion. these filters are all for the LT1 Corvette engine and are a different design. some people pick a brand and use one of their filters in every vehicle they own. i look at the data the manufacturers publish and then cut open a few of the top options - generally not this many ;)
all GM applications that these filters are built for already have an oil bypass valve on the engine. that's why most filters for these engines - including the ones made by GM / AC Delco do not have bypass valves on the filter.
The first thing I do with a small block Chevy it's take off the oil filter adapter and pipe plug the bypass because you do not want any oil whatsoever bypassing the filter. If your gauge starts dropping your filter is probably getting clogged especially if you're running a Fram...
@BRS_Racing. that's a fact. Most buyers are unaware of this. XP is for extended oil change intervals. It filters poorly by design, so it doesn't plug up over extended interval. That's a "feature", not a bug, hahaha, and you pay a couple dollars extra for it, too!
@Grant3758 you can navigate around their own website and find the info. Don't get me wrong, wix XP is NOT a bad filter. It's a filter intended for extended oil change intervals. It filters poorer because it's made to not plug-up too soon on those extended intervals. It does its intended job, just fine. But the regular WIX does a better job FILTERING, for several dollars less, IF you use accepted oil change intervals of 5k miles or less. Personally, I would disregard any manufacturers' recommended oil change intervals over 5k miles. Oil is cheap relative to costs of repairing/replacing vehicles, now.
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A visual inspection doesn’t tell the whole story but thank you.
Nobody said it does
Tells a good part of it.
YOU'RE ABSOLUTELY RIGHT SIR YOU CANNOT TELL THE QUALITY OF THE FILTER BY JUST CUTTING IT OPEN AND LOOKING AT IT. If anyone thinks you can then you can go run them, they're all yours 😉
That “clunky functioning” Wix bypass valve is designed to bypass the oil BEFORE it back washes the dirt from the exterior filter media in the bypass mode.
This!
since he mentioned there shouldnt be a bypass, it seems Wix just put a dummy bypass there. There is no wholes on that part, just a pure metal piece.
The Wix bypass is the best design on that table. You don’t understand the design, doesn’t make it “ clunky” lol…
100%!
I have used Bosch filters only, on my 15 years old VW T5 2.5 TDI. Together with Castrol Edge LL 5w30, changin every 20000 km, it's working good.
thank you for cutting these things up for us.
Sorry your focusing on the wrong things and simply cutting them apart tells you squat without knowing flow rates and backpressure. The very worst thing a oil filter can do is starve the engine from high backpressure that damages both the engine and oil pump. Wix has one of the best reputations out there and looking at the back plate and beefy spring would be my 1st pick hands down.
This was my thought too, he completely glossed over the build quality of the Wix filter without even understanding, or explaining why Wix made it that way.
Agreed
@@handyman1957 Sadly WIX sent production over to china, so I'm not so sure about their future.
My Wix 51515 is made in USA. Just put one in today.
So I bought a Fram Titanium FS-5 filter specifically because I watched this video. A month and a half ago I did an oil change and installed the brand new Fram filter. I did some work on the engine about a week after the oil change so I just left it alone. I installed a new cam and lifters, timing chain set, valve springs and seals with an Edelbrock TBI intake. Nothing got in the oil and the engine was fairly clean. I started it back up and ran it for a few days but the oil pressure just wasn't right. It normally hits 45~50 PSI cold and it'll drop down to 15 psi when it's hot. I could barely get 30 PSI cold and it would barely keep 10 psi when hot and the check gauges light kept started coming on. I changed the sending unit, I went through the wiring, I even changed the oil again but since the filter was brand new with less than 200 miles on it I didn't change it. Yesterday I pulled the Fram FS5 Titanium off and unfortunately all I had was another Fram extra guard filter to replace it with. I put it on, fired up the engine and it nearly hit 50 psi warming up. Once it warmed up I had a solid 15 psi back.
I'm sorry to say after this experience I will never buy another Fram filter again ever. This could have been the end of a perfectly good running engine because of a freaking $12 garbage filter.
I still have to cut it open because for the life of me I can't understand how this filter blocked in less than 200 miles.
I have used mostly Mobil 1 and Wix XP for so many years without a p roblem...K&N also!
I've noticed that some oil filters have the circle holes and some have the rectangular holes my concern with the rectangular holes is that it can cause lower oil flows having this design I love the videos keep up the great work
Flow rate is also VERY important. The Mobil 1 is 30 micron and has the best flow rate.
I have used NAPA gold, which used to be made by Wix, for years with no problems that could be traced back to a filter issue. I have had two different cars over the years that the oil light would come on at idle in gear that I repaired by merely replacing the orange Fram oil filter with a NAPA gold.
yeah - these are each brands top filters. I will say that the budget AC Delco is really solid construction.
There are two factors that determine a good filter, Filtration and Flowability. If the filter is too restictive then the oil will just go through the by-pass. Keeping an eye on the condition of the oil tells you if the filter is doing it´s job.
Not just that, but the more restrictive filter media will clog faster.
@@handyman1957 I imagine the auto motive industry and filter companies have worked together a long time on filtration and flowability and have come to the conclusion that 25 - 30 micron is the best as most filters are of this micron rating.
Yup, and I got to thinking, if the filter is too restrictive, the better chance of it opening the bypass and then your not getting any filtering at all. @@markwarnberg9504
@@markwarnberg9504 what you're describing applies to old-school surface filtration and the Bosch and Mobil 1 are perfect examples. Mobil 1 (made by mann-hummel) is rated to 20k miles and only removes 30 micron particulates. the Bosch (also made by mann-hummel) is rated for standard oil change intervals (max 10k) and filters down to 20 microns. with traditional filter technology you can have extended drain intervals OR fine filtration - not both.
In contrast, depth filtration media (like what's found on the Fram Titanium, Ultra and Endurance) is proven to flow well, have a great contaminant holding capacity and they remove down to 20 microns and smaller.
@handyman1957 filters clogging are even needing you go into bypass mode is super rare. even 50 years ago it was uncommon - unless there was an engine issue or the oil and filter were left in service waaaay too long. this comparison is between the top offerings from each brand - so 100% safe for their rated oil change intervals.
For my group yesterday I took apart a Motorcraft 820S, a Fram XG2, and a Microgard Select 51372. And I was a little surprised at the results. The Motorcraft filter has went down in quality and I'd definitely go with the Microgard Select over either one of them. The XG2 was for the money far superior to the MC 820S EXCEPT the filtered oil returns are a lot smaller.
In what world is a bypass not supposed to be present?
Los motores que utilizan filtros sin válvula de derivación, ya la tienen integrada en el motor.
all GM applications that these filters are built for already have an oil bypass valve on the engine. that's why most filters for these engines - including the ones made by GM / AC Delco do not have bypass valves on the filter.
The high-end Frams are decent, but I question the rather small holes in the inner core.
We don't have the micron rating here in Europe for cartirdge filters ( not screw on type),would be cool to have.
With the talk about Bypass..Each vehicle engine has a specific Bypass PSI Requirement.
Do all or any of these meet this Bypass Requirement Accurately?
That's what I liked about the Bosch Premium i bought for my Silverado years and years ago but where I got them stopped selling them so back then I switched to AC Delco filters. I'll order a Bosch Premium for this current ride and see if I like how it performs because there's no way it's getting a Motorcraft put back on if i plan on running it very long. The $4 way it was put together was superior to this $8.44 one.
where the hell did you get the filtration numbers on that purolator? That’s a 25 micron at 99% efficiency.
That would be 99+
false. what they print on the Purolator boxes isn't accurate. you have to email them to get the actual efficiency for each individual filter. here's the details: bobistheoilguy.com/forums/threads/purolator-99-efficiencies-confirmed-boss-46um-one-30um-pbl24011-pl24011.371384/
Never witnessed an engine suffering lubrication related damage using mid-level oil filters changed at regular intervals.
Alot of these filter companies are cutting corners using the same part numbers for a inferior product. The filter you bought 4-5 years ago might not be the same as the one today.
That purolator boss is the best filter there. Not sure where the heck you’re getting the filtration numbers from. Its full synthetic media, not to mention the thickest can out of the bunch
@@ajmedeiros77 directly from Purolator. Inquire yourself - they’re very responsive.
Thanks for the concise video!
your opinion on louvers vs. holes vs. that plastic cage thing on the supertech oil filters
all of them are probably fine. the plastic cage probably results in the least restriction - just based on its wide open design
How did you find out what micron filter media was inside of them
some have that info on their website, others i emailed the manufacturer.
Forget about how they are constructed, how well does each one filter small particles of dirt? Looks can be deceiving.
ISO filtration efficiency ratings are talked about for every filter - did you watch the video?
I have never seen a drain back oil filter test. So, whose filters drain back valve really works the best?
i wish you cut open the standard ac delco
the standard AC Delco is a great filter for the $$! this video was intended to compare each companies premium offering - but in another video show how good the standard AC Delco is:
ruclips.net/video/sldaP2-gJ0A/видео.htmlsi=B7UBwtVsqNtPfm3S
How many companies do you think are pressing out these pieces
I've heard 5 companies make all the filters, but they change the assembly line for the manufacturers specs.
In the next video, I’ll be looking at 10 bottles of wine and tell you which one tastes the best without drinking them.
the problem with all these filters is that they have the steel core with the LOUVERS ISTEAD OF HOLES. Some samples of many brands have been found to have many louvers that are not punched out - no openings!
The "seal" doesn't matter. Like you said-- it's a "spring". Which means that it opens and lets oil bypass at the slightest pulse in pressure. They all do this. The filter can't be allowed to clog like a fuel filter, because it would kill your engine. So they ALL easily allow the oil to bypass by design. Especially the "better" filters that have the ability to catch the finer particles. Bypass is happening regularly.
the filters in this comparison with the finest filtration Bosch and Fram Titanium (and the OEM AC Delco) all do not have bypass valves - because the GM engines that they're designed for already have oil pressure bypass valves. so having another bypass on the filter just isn't needed. i would argue that bypass is happening very very rarely - and that all filters tested are designed to flow well and functionally filter even in the most demanding race applications. oil bypass isn't a normal operational occurrence - it's a failsafe for when routine maintenance isn't performed or unexpected contamination levels occur.
no motorcraft but four frams?
it never occurred to me to put a Ford filter on a Corvette
@@BRS_DIY i just assumed it was about the filter not the car...good luck
@@excelerater the title of the video is "8 Top GM Oil Filters Cut Open" ;)
Purolator Boss for flow and Amsoil for filtration
where was that bosch filter made from??? jsut curious
north carolina
The Purolator Boss filter is much better than what you are claiming. Brand Ranks built a serious test rig and its still at the top of leaderboard. Does it hold up to the 99%+ rating? no because thats unrealistic for us normal people and done outside of a lab.
none of the claims are mine - they are exactly what Purolator states on their data sheets. it's all public information - search for yourself or email them directly. Brand Ranks created some interesting test equipment - but it is NOT the same quality or standards required by certified ISO lab testing
Change your oil every 5K with good oil and filter Thats all it takes to keep a engine healthy Don't cheap out and no need for most expensive for every day driver
I have never heard of an application of a filter where it didn't have an internal bypass it's kind of a safety feature built-in to the filter because unfiltered oil is better than nothing at all
millions of vehicles have the oil bypass built in.
Many cars have the oil bypass in the filter mount, or in the oil pump housing. My 1979 Subaru has the bypass inside the oil pump which is also combined with the oil filter mount. My friend's Oldsmobile 5.7 diesel has the bypass in the oil filter mount. Chevy small and big blocks have the bypass in the mount. I've had a Nissan with it in the mount as well.
There seems to be zero consideration for the length of the filter medium.
Interesting comparison, in my observations you see far more Fram filtered engines in the junkyards that I frequent than other filters. Just an observation. So I personally do not use Fram for anything
check out this video - which extensively looks into the Fram issue
That would be their bottom of the barrel orange can of death.
The Fram $4 special is good, to about 3,000 miles...
weird that you say its a 46micron filter, puralator claims 20microns at 99% for the puralator boss, not sure where the published that its 46 microns
bobistheoilguy.com/forums/threads/purolater-boss-46-micron-and-purolater-one-30-micron.369023/
@alecchildress4514 this was my specific inquiry:
bobistheoilguy.com/forums/threads/purolator-99-efficiencies-confirmed-boss-46um-one-30um-pbl24011-pl24011.371384/
weird, that makes me want to stop using this filter, on their website they claim 99% at 20 microns with this filter@@BRS_DIY
At one time on here many guys were proclaiming Fram were totally crap filters. Are they being made better now than they were? Wix Gold were known to be an excellent choice, so i don't know. I had a 1991 VW Turbodiesel that had 698,714KM on it, when some asshole running a red light totaled it. The engine was still running great and i expected it to go much longer. I used Bosch oil filters until i couldn't buy locally and then switched to Wix Gold. Drove the car daily 220-230 KM Mon.-Fri. and winter temp. MINUS 30F and lower. Conventional oil with VW recommended 8000KM intervals. It would be barely 1/2 Liter off the full mark by then. I don't see the number of pleats meaning much unless you cut them completely open and stretched the media open to compare surface area. Not much of a comparison shown here.
I use the fram Ultras on my car It's a different model number The filter media looks exactly like the one on the titanium It has that reddish pink color. My models an XG918 it's a cartridge style filter so no can
Filter ! "I don't even know her"
Put a flashlight in the hole and you'll see light through the bypass plate...
All these WIX fanboys. 😅 I been buying the cheapest filters I can find for yearsssss. Super tech is my go to. No problems whatsoever. If you want to pay $14 for a filter great. Nobody is mad at you 😅
1:53 look at the tests it crushes every other filter...
You forgot the K&N FILTER!
this is a comparison of the top filters for this application. the K&N isn't on par with these
Just get purolator and you'll never have any problems.
Where is the top tier Amsoil filter? 🇺🇸🇺🇸🇺🇸
@gr7523
Oh I'm sure an Amsoil dealer has one in a box in their home somewhere.
Amsoil should really eliminate the pyramid scheme (multi level marketing) .
If their products were on the same retail store shelves as other brands consumers would see them. Problem is, they'd see how expensive they are & likely wouldn't buy them anyway.
I’ll take a bigger micron number and change my synthetic oil at three thousand miles
why? when for the same price you can have cleaner oil
@@BRS_DIY
I’ve seen reports were it can impede oil flow
You’ve clearly never ran wix it’s almost one of the best options, visual inspections don’t do much you have to do an actual oil test
i have had L98 powered Corvettes that i've run Wix oil filters on, and cut them open, and had the used oil lab tested. they do make some good filters in my opinion. these filters are all for the LT1 Corvette engine and are a different design. some people pick a brand and use one of their filters in every vehicle they own. i look at the data the manufacturers publish and then cut open a few of the top options - generally not this many ;)
Just skipped over mobil 1
There should be no bypass? I stop watching after this comment.
Algunos motores utilizan filtros de aceite sin válvula de derivación, porque ya tienen esta válvula integrada en el motor.
all GM applications that these filters are built for already have an oil bypass valve on the engine. that's why most filters for these engines - including the ones made by GM / AC Delco do not have bypass valves on the filter.
The first thing I do with a small block Chevy it's take off the oil filter adapter and pipe plug the bypass because you do not want any oil whatsoever bypassing the filter. If your gauge starts dropping your filter is probably getting clogged especially if you're running a Fram...
Pffft frams a joke.
Hmm what about six xp?
XP is their extended drain filter - but it's filtration efficiency is low 35+ microns.
@BRS_Racing. that's a fact. Most buyers are unaware of this. XP is for extended oil change intervals. It filters poorly by design, so it doesn't plug up over extended interval. That's a "feature", not a bug, hahaha, and you pay a couple dollars extra for it, too!
Wix xp? Any tips on where i can read more about this. I thought wix xp was a good filter
@Grant3758 you can navigate around their own website and find the info. Don't get me wrong, wix XP is NOT a bad filter. It's a filter intended for extended oil change intervals. It filters poorer because it's made to not plug-up too soon on those extended intervals. It does its intended job, just fine. But the regular WIX does a better job FILTERING, for several dollars less, IF you use accepted oil change intervals of 5k miles or less. Personally, I would disregard any manufacturers' recommended oil change intervals over 5k miles. Oil is cheap relative to costs of repairing/replacing vehicles, now.