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The one, single Baldwin Premium filter I bought was for a vertical mount. I've decided to stay with AC Delco as my vertical mount filter. The PF-61 has no ADBV.
No sense in buying filters with ADBVs when one is not neeeded. That filter stays full of oil 100% of the time after shutdown. That Colorado 4X4 engine has a decent size oil channel in the engine that sits right above that vertical filter. It makes quite a oil mess when changing the oil. I remove a full filter every time - plus another 1/3rd quart comes out - that sits in that channel above it.