Originally Posted By: goodtimes
Must be harder to get or expensive, Amsoil and Fram Ultra in Greece? I don't know about those flat washer looking adbv's. I know it is German and all, but you would think it needs some shape so slight pressure can be applied around the inlet holes.
The ADBV is defintely not flat. I cut open a new Mann W/917 recently, and posted pictures.
http://www.bobistheoilguy.com/forums/ubbthreads.php/topics/4022295/Re:_Mann_W/917_cut_open.#Post4022295