I have not seen any reported issues with e-core filters in well over a decade.
There were issues with the spacing and the plastic itself, but again, long since addressed.
My gripe with the Champ e-core filters are the ones I use (like the ST2 from Walmart) has a combo valve, and while I am sure it works fine, I just don't like it.
That said, I use an ST2 on my brother in laws F150.
On a side note, I do use the ST9688 as well, but that is not an e-core design, nor a combo valve. If it had a silicone ADV, it would be an almost perfect budget filter (and in reality still is for me for my use of it).
There were issues with the spacing and the plastic itself, but again, long since addressed.
My gripe with the Champ e-core filters are the ones I use (like the ST2 from Walmart) has a combo valve, and while I am sure it works fine, I just don't like it.
That said, I use an ST2 on my brother in laws F150.
On a side note, I do use the ST9688 as well, but that is not an e-core design, nor a combo valve. If it had a silicone ADV, it would be an almost perfect budget filter (and in reality still is for me for my use of it).