This bulletin specifically applies to 2016-2020 Infiniti Q50 and 2017-2020 Q60 vehicles equipped with a V6 engine but also applies to engine oil drain plug cautions on any vehicle. Over-tightening the oil drain plug can result in oil leaks and damage to the female threads in the pan.
Whenever installing an engine oil drain plug on the aforementioned Infiniti vehicles, never tighten the drain plug greater than the specified torque value. Over-tightening may loosen the threaded insert in the oil pan.
Also, always replace the drain plug gasket whenever installing the drain plug. Instead of the oil pan drain plug hole featuring integral threads, the oil pans in these vehicles feature a threaded insert. Over-tightening can loosen the threaded insert, allowing it to spin in its hole. The proper drain plug tightening torque value is 25 ft-lbs (33.5 Nm).
