After speaking with techs at both Advance and AutoZone, the information I have on these is:
It is exactly the same technology in the full synthetic (Blue) filters as the PurolatorONE (Yellow) filters. There is no difference on the internals. Same product repackaged to sell 2x as many. And apparently since people are wise to this, that line of filters has since been discontinued according to them. So you won't find many of them anymore in stores. Best bet to get them is Amazon.
I use the PurolatorONE myself, #14612. And have had zero complaints. Also using Redline oil as well.
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Bonnie - Stage 2, Audio build coming this fall!
R.I.P. Abby 3/29/10 - 3/30/14
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