I've had an ADBV failure on an XG-8A.
Valvetrain started clattering on start up @ ~9700 miles into OCI, 95%highway miles with those accumulated in a short period of time.
When I removed the filter, which sits @45 degrees, it was half full and no oil dripped out from above, as has done every oil change for the last 18.5 years with this engine.
I replaced it with another XG-8A bought from Summitt for about the same price as wally world when tacked onto another part to exceed the free shipping threshold.
I drove from California to Florida before Xmas, and on the way back ~6 weeks later, on a very cold start (17f) in Texas after resting 8 hours, clatter clatter clatter, same as before with failed ABDV.
Next cold start(34f) in NM, after an 8+ hour rest the clattering did not last as long but was there.
Cold start today at home (64f) after 16 hours rest, definite clattering.
I'll be pulling this filter soon, and am done with Fram Ultra's xg-8a, although I just put an XG 7317 on my sister's 2005 CRV with some PP 5w-20 and she said it was buttery smooth and quiet afterwards.
I hypothesize that hours and hours on end driving, I drove it 2550 miles in 3.5 days, causes the leaf spring to fatigue, and not allow the ADBV to seat properly with enough pressure anymore. I guess then it would be in partial bypass too then. Not good if true. What good is a 99% effieiency rating @ 20 microns on the media, if it is stuck in partial bypass after a few thousand miles?
I have the first failed XG-8A on the shelf in its replacement's box. I let it drain for a week+, not sure if it rattles or not. I'll check, but I guess I'm going back to M1-301's for a few bucks more. Pretty sure the m1-301s that I opened previously, had coil springs, and I like the thread end bypass, in theory, better anyway.
I'll open up the failed XG-8A soon and post pics, but I'm 100% positive the ADBV failed on the first one, and 65% sure it has failed / is failing on this second one too, and I'm not happy about it, and would not install another if Fram mailed me a case of them for free.