I don't want to loosen factory torqued bolts since they likely have some loctite on there that I don't want to disturb.
Usually I use a plain socket & ratchet, and just apply a little bit of tightening torque to see if anything is loose. I don't try to tighten it further, just act as if I am going to tighten it to see if it moves, like I apply what I would guess is about half of the specified torque, again just to see if something is starting to loosen. If it is, I properly torque it.
The fasteners I check include the engine mounts, suspension and brake mounts, and of course the wheel mounts. I usually do this when I do an oil change, and after a while you will get to know which fasteners have a habit of coming loose, and which ones don't. When you find the ones with bad habits, apply a little loctite, properly torque, and live happily ever after.
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