The original filters for the Skyactiv engines were PE-14-302 (no suffix) made by Tokyo Roki in Japan. I used the last one that I purchased in 2012 (the first year Skyactiv engines were available here) in 2020. I had been using microGreen MG101-7 between 2013 and 2020, but we all know what happened to microGreen. I was able to get one MG101-7 on eBay (lucky find) and that's what's on there now. What I'll be using after that is Fram Ultra (6607). Same here with regards to not seeing an issue if the aftermarket filter has an ADBV. It just won't do anything in this application. I wish Stratapore filters were available in small sizes like this.