Carquest Premium 84502 C&P

[bbhero]

It's a leap IMO to think that all filters made by Premium Gaurd are all the same efficiency. If it doesn't clearly state xx% at or greater than yy microms per ISO 4548-12 then I'm not assuming the efficiency is the same as some other labled PG made filter. When nebulous words are used instead of simply stating the ISO efficiency, it's suspect.

The wording sucks in that one example. Ok that is true.

Yet they are shockingly similar in SPECs…

Give it a rest …

It’s obvious that the correct ISO wording is used in the Microgard Select and the Federated Auto Parts flyer.

The Microgard is the same as the Federated Auto Parts XL… And that same exact filter was in my local Autozone the STP XL…

Seriously what the hell…
..
I have had both AZ STP XL and Federated Auto parts XL filters in my hand… Exaxt same filter. Stevie Wonder would have noticed that.

And Adavance Auto Parts has clearly never updated their information on their Carquest filters… Which is not very helpful or good.

 

[ZeeOSix]

Everyone knows you can't determine any filter's efficiency by looking at the media, that's ridiculous.

The STP XL worded specs are very nebulous. When they say the "Micron Rating" is 42 microns, and that it catches particles "as small as 20 microns" that gives you the real story. There's no way I'm buying that it's 99% @ 20u. They are using nebulous language for a reason. And no, I won't "give it a rest" if people are going to keep debate it.

 

[bbhero]

Everyone knows you can't determine any filter's efficiency by looking at the media, that's ridiculous.

The STP XL worded specs are very nebulous. When they say the "Micron Rating" is 42 microns, and that it catches particles "as small as 20 microns" that gives you the real story. There's no way I'm buying that it's 99% @ 20u. They are using nebulous language for a reason. And no, I won't "give it a rest" if people are going to keep debate it.

You are way, way, at more intelligent than this Zee…


You first tried to argue about the ISO part…

That information is out there.. To see.

It’s obvious that anyone seeing the information put on here.

The wording was n that one page and even the Federated flyer is clearly not ideal or the right way to state that. That is true. Though to be fair at the bottom of that Federated Auto parts sheet it is clearly stated per ISO etc etc…

However everyone knows that it’s Stevie Wonder blanking obvious ….

The O Reillys Microgard Seiect is the EXACT same filter as the AZ STP XL and the Federated Auto Parts XL….


The spec sheet information is clearly understandable when you know the history of it…

The spec sheet is old from Federated Auto parts… I know… I looked it up in early 2018… That sheet was not updated.. AAP never updated theirs from the previous generation of those filters. I was the first one on here to let everyone know PG was making the Carquest filters for them… AAP never updated their information sheets. And Napa Golds made by PG … They just left the wording from the previous generation filters in there and did not update that either.

 

[Peted]

Although the Carquest Premium, STP, Federated and Premium Guard all look to be the same filters (made by Premium Guard) they appear to all have different language and slightly different numbers in regard to the efficiency rating. I went ahead and posted all the references to efficiency from the brands that appear to be selling variations of filters produced by Premium Guard.

Carquest Premium:
Per official website PDF: "Efficiency at 30 microns* 99% *Testing of average filter efficiency of CARQUEST Premium filter 85515 under ISO 4548-12 for particles greater than 30 microns."
http://www.carquestprofessionals.com/filters/pdf/Premium-Oil-Filters-Shell-Sheet.PDF

Per Advance Auto website: "Synthetic blend media provides 99.5% efficiency at 20 microns and 2X capacity vs. Standard filters."
https://shop.advanceautoparts.com/p/carquest-premium-oil-filter

STP Extended Life: "Built with advanced synthetic fiber blend media with 99% Multi-Pass efficiency and removal of particles as small as 20 microns. *Micron rating 42"
https://www.autozone.com/filters-and-pcv/oil-filter/p/stp-extended-life-oil-filter

Federated Extended Life: "99% Multi-Pass Particle Removal Efficiency* *>20 microns per ISO 4548-12"
https://www.fisherautoparts.com/Extended-Life-Oil-Filters.aspx
https://www.fisherautoparts.com/images/Federated-Extended-Life-Filters.pdf

Premium Guard Extended Life: "99% Multi-Pass efficiency and removal of particles as small as 25 microns* *per ISO-4548-12" "Micron Rating 42~60"
https://www.pgfilters.com/products/filters/oil-filters/oil-filters/
https://www.pgfilters.com/product-catalog/product-page/PG2500EX/2025-Ford-Mustang/Oil-Filter/

ECOGARD Synthetic: "Synthetic blend media delivers 99% efficiency based on ISO 4548-12 at 25 microns"
https://www.ecogard.com/filter-look...500/2019-Chevrolet-Silverado+1500/Oil-Filter/

MicroGard Select Extended Life: "99 percent efficiency (Laboratory Test Performance per ISO 4548-12 at 25 microns)"
https://www.oreillyauto.com/detail/c/select/microgard-select-oil-filter/

Pentius UltraFLOW Extended Life: "99% filtration efficiency for 20 microns and above particles"
https://pentiusautoparts.com/ufxl-oil-filters/

Parts Plus Extended Life: No reference to efficiency, however the website says, "Parts Plus filters by Premium Guard."
https://myautoparts.partsplus.com/c...ufacturer=parts-plus-filters-by-premium-guard

Pronto Extended Life: The website does not list any efficiency information, however Pronto Auto and Parts Plus are part of the Pronto Network Cooperative, Inc. "Our members market under the brands; Pronto, Parts Plus, and Auto Pride." The Pronto Network is also partners with Federated Auto Parts. "Pronto Network Cooperative is a proud member of the Automotive Parts Services Group, The Group along with our partners at Federated Auto Parts; and Nexus Automotive International." It may be safe to say Premium Guard provides the oil filters for Parts Plus, Pronto and Federated.
https://theprontonetwork.com/home/about

Prime Guard Synthetic: "Filters out 99% of contaminants at 30 microns for longer engine life" No ISO reference. Prime Guard may also be manufactured by Premium Guard. Both filters look similar but not identical; red vs black gasket, though EcoGard filters also have a black gasket. "Prime Guard® is Highline Warren’s Fastest Growing Proprietary Brand."
https://www.shophighlinewarren.com/p/PRIMPOS2500?uom=EA&tracking=searchterm:2500
https://highlinewarren.com/prime-guard/

 

[bbhero]

Although the Carquest Premium, STP, Federated and Premium Guard all look to be the same filters (made by Premium Guard) they appear to all have different language and slightly different numbers in regard to the efficiency rating. I went ahead and posted all the references to efficiency from the brands that appear to be selling variations of filters produced by Premium Guard.

Carquest Premium:
Per official website PDF: "Efficiency at 30 microns* 99% *Testing of average filter efficiency of CARQUEST Premium filter 85515 under ISO 4548-12 for particles greater than 30 microns."
http://www.carquestprofessionals.com/filters/pdf/Premium-Oil-Filters-Shell-Sheet.PDF

Per Advance Auto website: "Synthetic blend media provides 99.5% efficiency at 20 microns and 2X capacity vs. Standard filters."
https://shop.advanceautoparts.com/p/carquest-premium-oil-filter

STP Extended Life: "Built with advanced synthetic fiber blend media with 99% Multi-Pass efficiency and removal of particles as small as 20 microns. *Micron rating 42"
https://www.autozone.com/filters-and-pcv/oil-filter/p/stp-extended-life-oil-filter

Federated Extended Life: "99% Multi-Pass Particle Removal Efficiency* *>20 microns per ISO 4548-12"
https://www.fisherautoparts.com/Extended-Life-Oil-Filters.aspx
https://www.fisherautoparts.com/images/Federated-Extended-Life-Filters.pdf

Premium Guard Extended Life: "99% Multi-Pass efficiency and removal of particles as small as 25 microns* *per ISO-4548-12" "Micron Rating 42~60"
https://www.pgfilters.com/products/filters/oil-filters/oil-filters/
https://www.pgfilters.com/product-catalog/product-page/PG2500EX/2025-Ford-Mustang/Oil-Filter/

ECOGARD Synthetic: "Synthetic blend media delivers 99% efficiency based on ISO 4548-12 at 25 microns"
https://www.ecogard.com/filter-look...500/2019-Chevrolet-Silverado+1500/Oil-Filter/

MicroGard Select Extended Life: "99 percent efficiency (Laboratory Test Performance per ISO 4548-12 at 25 microns)"
https://www.oreillyauto.com/detail/c/select/microgard-select-oil-filter/

Pentius UltraFLOW Extended Life: "99% filtration efficiency for 20 microns and above particles"
https://pentiusautoparts.com/ufxl-oil-filters/

Parts Plus Extended Life: No reference to efficiency, however the website says, "Parts Plus filters by Premium Guard."
https://myautoparts.partsplus.com/c...ufacturer=parts-plus-filters-by-premium-guard

Pronto Extended Life: The website does not list any efficiency information, however Pronto Auto and Parts Plus are part of the Pronto Network Cooperative, Inc. "Our members market under the brands; Pronto, Parts Plus, and Auto Pride." The Pronto Network is also partners with Federated Auto Parts. "Pronto Network Cooperative is a proud member of the Automotive Parts Services Group, The Group along with our partners at Federated Auto Parts; and Nexus Automotive International." It may be safe to say Premium Guard provides the oil filters for Parts Plus, Pronto and Federated.
https://theprontonetwork.com/home/about

Prime Guard Synthetic: "Filters out 99% of contaminants at 30 microns for longer engine life" No ISO reference. Prime Guard may also be manufactured by Premium Guard. Both filters look similar but not identical; red vs black gasket, though EcoGard filters also have a black gasket. "Prime Guard® is Highline Warren’s Fastest Growing Proprietary Brand."
https://www.shophighlinewarren.com/p/PRIMPOS2500?uom=EA&tracking=searchterm:2500
https://highlinewarren.com/prime-guard/

I appreciate your effort man. I do.

Certain parts of your information here is out of date man….

AAP NEVER updated their spec sheets…

Neither did Federated Auto parts…

Neither Did Napa with their PG Gold made filters…

What you put in there is previous generation for filter spec information from the previous manufacture in regards to Carquest made filters…


Therefore the difference in information in that.

 

[ZeeOSix]

^^^ Yep, no way every PG made filter has the same efficiency. Just like every Champ Labs, Fram or Mann-Hummel made filter with other brand labels are the same efficiency. If it doesn't reference ISO 4548-12 or other similar test standard, and doesn't say "xx% at yy microns or greater", then I'm not buying into nebulous efficiency claims. It's not hard to use the correct efficiency description language, especially from a filter design and manufacturing company. They should be the first to know about their filter's efficiency and how to express it correctly.

 

[ZeeOSix]

I appreciate your effort man. I do.

Certain parts of your information here is out of date man….

AAP NEVER updated their spec sheets…

Neither did Federated Auto parts…

Neither Did Napa with their PG Gold made filters…

What you put in there is previous generation for filter spec information from the previous manufacture in regards to Carquest made filters…

Therefore the difference in information in that.

Like I said before, if this is the case (I'd need more proof than a claim it's old info), then people need to be put on the job of keeping info up to current date, or get out of consumer sales. People look at current claims and go by that, period. Who else do you believe if not the people marketing and selling this stuff?

 

[bbhero]

^^^ Yep, no way every PG made filter has the same efficiency. Just like every Champ Labs, Fram or Mann-Hummel made filter with other brand labels are the same efficiency. If it doesn't reference ISO 4548-12 or other similar test standard, and doesn't say "xx% at yy microns or greater", then I'm not buying into nebulous efficiency claims. It's not hard to use the correct efficiency description language, especially from a filter design and manufacturing company. They should be the first to know about their filter's efficiency and how to express it correctly.

You can read and comprehend… At a very, very high level.

You can learn think and reason at a very, very, high level Zee…

Like I said…

Carquest at AAP NEVEr updated their information…

And I guarantee that AZ never updated thei spec sheets either… They just copy and pasted things Willy Nilly…

Napa..: Has NOT updated their information either… It’s the exact same wording…. AS BEFORE.

Federated Auto parts never updated their spec sheets…


O Reillys actually updated their filter information with the latest spec sheets.

Why all the other mentioned didn’t ?

Ahh.. Hell if I know.

But I agree that the wording in certain places is not well done. And I think the lack of changing and updating spec sheets is not very helpful at all.

 

[ZeeOSix]

You can read and comprehend… At a very, very high level.

You can learn think and reason at a very, very, high level Zee…

Like I said…

Carquest at AAP NEVEr updated their information…

And I guarantee that AZ never updated thei spec sheets either… They just copy and pasted things Willy Nilly…

Napa..: Has NOT updated their information either… It’s the exact same wording…. AS BEFORE.

Federated Auto parts never updated their spec sheets…

Then they should get a new markting department and keep their website and specs upto date. I'm only going to believe what's claimed (with ISO 4548-12 specs), as nobody is a mind reader, lol. Nebulous efficiency claims are suspect, just like the WIX claim when they said the XP had "proprietary efficiency" when I called their Tech Line.

 

[bbhero]

Zee….

I don’t make things up or lie…

Have an extremely good long term memory.

I know for a fact that Federated Auto parts sheet about the XL was from 2018… I remember it and when I looked up again the other night… From Fisher Auto parts aka Federated Auto parts near me in Richmond Virginia. The exact same sheet… It was surprising to me that it was the exact same but it was.

The one from AAP….

Exact same when MH was making the Carquest Red and Blue filters… Exact same pictures, wording and layout from several years ago…

And Napa….

New pictures of PG made Napa Hold filters - Yes…

Exact same wording and no changes in format in the product description… Exact same a before when Wix MH made them.

 

[bbhero]

Fact is … Places are not placing high priority on hiring people or paying people to change or update their product information.

Evidence is obvious when you see the same pictures, wording, and information from 3-7 years ago.

 

[ZeeOSix]

No filter company is a real filter company if they can't give actual ISO 4548-12 or similar efficiency specs - and keep that info upto date. And I'm not going to assume/concluded some efficiency from nebulous efficiency claims., or assume that one filter made by company' XYZ is the sane exact filter and efficiency as another filter brand made by that same XYZ company.

The filter marketing is either really sloppy, or nebulous for a reason, like the WIX XP "proprietary efficiency" claim. I'll never forget that phone conversation. I asked the guy if the filter was for a secret military program, and the guy was crickets, lol.

 

[bbhero]

Though to be fair for the PG Microgard Select it clearly gives the specs on the O Reilly website… And it is stated very well.

And I believe it is up to AAP or Napa or Federated auto parts to update the information…

We don’t know IF PG sent them new spec sheets…

And in my work Zee…. I don’t know if a physician office sends new scripts to a 3rd party company…

I have had to get the physicians office to fax me a raw order for a $15,000 medication.. Because that office never sent that new order to the 3rd party company that my company has signed a contract with…

Same thing is VERY likely here..

If PG sent those companies the latest information…

Like they obviously did with O Reillys…

And AAP , AZ , Federated Auto Parts, Napa etc etc never updated their spec sheet information… Then that is on them.

We don’t know who dropped the ball here…

No idea.

 

[ZeeOSix]

Though to be fair for the PG Microgard Select it clearly gives the specs on the O Reilly website… And it is stated very well.

Yes, exactly. But that doesn't mean all PG made filters under different brand lables and with different COOs are all the same media & efficiency. Especially if those other PG filters have nebulous efficiency claims like the STP XL made in China vs the MicroGard Select made in Vietnam that has a clearly written ISO 4548-12 efficiency spec.

 

[SC Maintenance]

All these oil filter companies play fast and loose with specs anyway - like when Fram and Champ ship filters spec'd with silicon ADBV with nitrile ones, without changing any documentation anywhere.

You could make a similar argument for any filter because even within a brand they publish specs on some particular model or size so your size might be different. Presumably there using similar media and design for all sizes, but there is that pesky presumably word again. I have seen filters within a model line with completely different builds based on application.

According to Advance Auto Parts - the carquest premium filter for my truck is 99.5% efficient at 20um. Best on the planet by that spec - correct? Guess I better buy a case

 

[ZeeOSix]

All these oil filter companies play fast and loose with specs anyway - like when Fram and Champ ship filters spec'd with silicon ADBV with nitrile ones, without changing any documentation anywhere.

Some of that was temporary supply chain issues. The EGs still have silicone ADBVs. No manufacture is going to update specs for a short temporary change.

You could make a similar argument for any filter because even within a brand they publish specs on some particular model or size so your size might be different. Presumably there using similar media and design for all sizes, but there is that pesky presumably word again. I have seen filters within a model line with completely different builds based on application.

The total media area, even if the same exact media, can effect the efficiency under the same ISO 4548-12 test conditions. At least some companies give which filter model(s)/size(s) the efficiency is based on.

 

[SC Maintenance]

Some of that was temporary supply chain issues. The EGs still have silicone ADBVs. No manufacture is going to update specs for a short temporary change.

Exactly - they change whatever they like when its convenient for them. So why would I believe anything the print - its meaningless to them.

When Fram and Champ shipped filters that did not meet their own spec, for whatever reason, they would have violated their own ISO production rules. No matter how vague you want to make your ISO quality policy you have to match your own spec, or change the spec. So when Fram shipped filters with the wrong ADBV they clearly violated their factory ISO procedures. So you want me to believe they follow ISO 4548-12 because they print it on the box.

All these consumer companies do whatever they want. Your best bet is to view the cut and paste and use your best judgement.

 

[KCJeep]

Premium Guard, the actual manufacturer has been pretty consistent in getting the 99% at 25 microns out there, and for a syn blend media that is right about what you would expect. When you start checking vendors sites is where the wheels start to fall off the wagon as @bbhero has pointed out.

Last time I looked at AAPs site they still had what were obviously Purolators pictured for some applications.

I know who I am going to believe.

Somebody mentioned Pentius, different company although probably same source. They consistently advertise 99 at 20 but honestly I think they are full of it.

 

[Sayjac]

....Last time I looked at AAPs site they still had what were obviously Purolators pictured for some applications....

Reading all the efficiency info about the CQ (and others) was thinking along a similar line. CQ has gone through so many manufacturers (iirc, Champ, Wix, Puro) to PGI now. Who knows when the efficiency info last updated for publication. While I'm not sure I can assume the CQ Premium is same as other equivalent PGI and PGI made filters, it's probably not a huge leap imo.

That said, when I decide to buy a CQ Premium 84356, it will be because of price for construction type and quality seen here, above precise efficiency citing data.

 

[EvoMan]

To make things even more confusing, on the Premium Guard website for the PG2500EX filter, they list it as having:

“99% Multi-Pass efficiency and removal of particles as small as 25 microns”.

If you scroll down to the Product Specifications, it show the micron rating as 42~60.