[piper6909]

I never use a torque wrench on an oil plug. I just snug it up by feel. Is this the first time you changed the oil on the car, or is it just the first time for this new plug? If it's the latter, just tighten it up as you normally have done in past oil changes. Before pulling it completely, you may simply try snugging it up a bit more and see what happens. If it still leaks, there must be a problem with the washer or the plug. Like Rex and others have said, it could also be bad calibration on your torque wrench or even try using a lower limit (smaller) torque wrench. Like Rex said, lower torques aren't very accurate on bigger torque wrenches. Especially on click-type wrenches. You'll notice that the lower you go in torque, the less spring resistance you get. That tells you the spring isn't doing much so it's not as accurate.