Originally Posted By: river_rat
Originally Posted By: Gary Allan
I would expect it after a given mileage. Right off the bat would be rare for most filters or engines (the picky ones).
You have much more experience with these complaints than I do, having been on this board longer and also being a dealer so I don't doubt this.
However, my own limited experience on my own vehicles has been that many ADBVs do not seem to seal off the shelf, but after being hit with hot oil a few times, begin to seal properly for the remainder of the filter's life.
I must say that few of my filters are left on past the 5000 mile mark though.
That is to be expected. All rubber softens with heat, and most adsorb a little oil and soften and swell. The manufacturers may even design for that. I see no need to pay more than what is needed for an ADBV that works 99.9% of its life. I have also found that cheap filters won't drain after they have been removed at the end of their life.