- Joined
- Dec 16, 2022
- Messages
- 720
An ADBV keeps oil in the oiling system when the engine is off. Not many engines specify a filrer without one.
Always wondered about this. In my truck the spin on filter sits at the bottom of the engine, with the threaded side facing up. Theoretically if my filter had no ADBV, where would the oil go? To me it's like having a cup filled with oil at the bottom of the engine and doesn't matter if there is a filter there or not, I would think the oil can't possibly drain up or down?