Filter has what look like two possible drains; one centered on bottom of filter. Number two offset on side of bottom. Which should I remove? If #2 what tool does it take? 17mm socket feels closest but I can't get it fully seated due to raised lip on filter. Both are tightly seated & I don't want to over torque.
#1 or #2 & what tool?
#1 or #2 & what tool?