Who makes the autozone STP oil filters?
- Thread starter MattLawz
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BrendanC
$100 site donor 2024
the XL are premium guards (red silicone O-ring is the tale tale)
thanks for the information. and the regular ol blue ones are champ?
BrendanC
$100 site donor 2024
not sure on that. i don’t shop at autozone typically so ive never bought/cut one open.
any things to look out for? I just watched 2 youtube videos about the XL and they look like different filters so I see what you mean.
BrendanC
$100 site donor 2024
would the champ based stp filters have an e-core like most other champ built 3rd party sold filters? that would be an easy identifier.
BrendanC
$100 site donor 2024
new carquest premium filters (silicone o ring) are also the premium guards for cheaper than the micro guards. with an online order and pickup in store you can get 15% off of the $10 retail.
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There was a recent C&P and it did not look like a Champ or a Fram?
STP 6607 C&P
STP 6607 in use for approximately 1500 miles 0w20 on a Subaru Ascent.
bobistheoilguy.com
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I can say I have an elantra and if I use a PG filter or a STP cartridge they both say made in Korea and look identical
In reference to the STP XL, the answer to the question depends on the region/location of the AZ store(s). Locally the XL is made by Champ Labs US and is equivalent in appearance and design to Super Tech MP series filters with silicone adbv. Has been that way for a while now.
In other regions, the XL shows up as a Premium Guard type/made filter like PGXL, very similar to current Microgard Select. You will need to check your local AZ to see the manufacturer in your area.
In other regions, the XL shows up as a Premium Guard type/made filter like PGXL, very similar to current Microgard Select. You will need to check your local AZ to see the manufacturer in your area.
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I just installed an STP XL that had e-core and silicone...absolutely identical to the Champ XLs that I also have on the shelf with the exception of the black ADBVs on the Champs which was a documented supply issue a while back. Unknown if those are nitrile or black silicone but the STP for sure was silicone.
99% chance it's not "black silicone". Got some matches laying around? ... ADBV burn test required.
From First Brands Champ Labs division, I'm going with black adbv being nitrile with confidence level at least equal to that mentioned above. Black adbv from First Brands have burn tested as nitrile. To this point, only been one exception found to black adbv burn testing as other than nitrile, Toyota OEM Thai Denso. Those have tested as silicone.
Iirc, early on when black adbv substituted on EG and TG, Fram reps claimed the black adbv still silicone. But later proven here to be nitrile. Early on astute members this subforum attributed it to supply chain issues, I can't recall if FB ever did.
In my area the Carquest Premium oil filters are priced at $7.79…. Pretty darn decent price at AAP for a very good oil filter.
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