thanks for the information. and the regular ol blue ones are champ?the XL are premium guards (red silicone O-ring is the tale tale)
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.Going to depend on the stock at your local AZ. Think one will find a mix of both…..
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.The MicroGard Select at O'Reilly Auto is worth looking at too. Very similar to the STP extended filter.
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 identicalIve heard different people say Premium Guard and Champion labs. Does anyone have a solid answer with the source?
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.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.
99% chance it's not "black silicone". Got some matches laying around? ... ADBV burn test required.Unknown if those are nitrile or black silicone but the STP for sure was silicone.
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.......Unknown if those are nitrile or black silicone but the STP for sure was silicone.
The MicroGard Select at O'Reilly Auto is worth looking at too. Very similar to the STP extended filter.