I've had some oil loss via the drain plug in my Subaru over the last 2 or 3 OCIs - just drips but enough to notice on the bottom of the pan when under the car. I'm hoping it's just an issue with the crush washers (which I replace every oil change). I'm going to try something new with the washer next time around to test that theory.
Overtightening the drain plug is another cause that gets cited for leaks. I'm one of those obsessives who uses a torque wrench on the drain plug, and I've done all the oil changes on this car so I doubt this is the case here. But reality check: I'd assume a pretty serious overtightening would be required to cause a leak, right? The car had a steel pan and specs 32 ft*lbs on the plug. It's possible I've "overtorqued" it a little just based on error tolerance but I doubt I've gone over 35 or so ft*lbs. I would hope this would not be enough to cause an issue...
Overtightening the drain plug is another cause that gets cited for leaks. I'm one of those obsessives who uses a torque wrench on the drain plug, and I've done all the oil changes on this car so I doubt this is the case here. But reality check: I'd assume a pretty serious overtightening would be required to cause a leak, right? The car had a steel pan and specs 32 ft*lbs on the plug. It's possible I've "overtorqued" it a little just based on error tolerance but I doubt I've gone over 35 or so ft*lbs. I would hope this would not be enough to cause an issue...