Now I'm a bit more confused. I found the Whip City Wrencher video from 10months ago on U tube on the EA15K13 flashlight test.
His was manufactured Aug 2022 and has a steel core and 10 inlet holes like the pics of other filters on here.
The EA15K13s I have are from May this year and are plastic...
Do we know or think that the Amsoil EA15K13 (same applications) are affected by this possibly leaking bypass?
They are e-core design (wire reinforced media, black plastic internal support and 13 inlet holes).
I'm literally invested in this answer as I have five of them manufactured May this year...