Started hearing the ugly dry start valvetrain rattle. Unspun filter, and in 17 years of removing filters on this engine, as soon as it is loose, oil drips down the sides of the can from the passages above the filter. It's always the messiest part of an oil change. This one today unscrewed dry, clean, not a drop spilled or dripped out, and looking inside of it, it was just over half filled. I could not have spilled a drop of used oil without upending the filter. Engine had not been started in 24+ hours. I had prefilled the new Fram Ultra XG8A and clean oil stayed inbetween the threaded holes and the O ring seal, sealed against entry. I poured some new oil in the same place on the used filter, and within a minute the oil level dropped by half and bubbles were coming from one of the inlet holes. Last march I just drained the old oil and added new, leaving this "20K mile" filter in place, it had ~8k miles on it then. I now regret that. Not sure that I will get around to dissecting it anytime soon. Too busy I cannot see any obvious issues with the ADBV through the inlet holes, It is as if there is just too little spring pressure pushing it tight against the inlet holes. I had bought it through Amazon in October 2018. Legit looking.
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