If you don't want to use a torque wrench then take it to the dealership; they don't use them either. I know, it cost me $350 for a new oil pan in my 99 Interped a few years ago. The A--holes used a temp plug and when I found out they claimed it was already stripped when they got to it. I thought that was kind of funny since they were the last ones to do the previous oil change so I don't know how long it had been there but I know that last time I did it, which had been three oil changes before, the pan was fine and I always use a torque wrench but it was my word against theirs. By the way that was last oil change I have ever had done by someone else.