Teemon, I use an allen wrench to loosen the drain bolt, no torque wrench, but to loosen the oil filter cap, I Use a torque wrench, which must be used carefully, because if you squeeze it too can damage the thread or the filter plug. I recommend you use an allen wrench, but in my case I did not have one of that size and so Use a torque wrench carefully, that's it, is not difficult.