When you buy an oil filter for it, there will be a copper o-ring or two included in a little package inside the oil filter box. Use the one that will fit on your drain plug, the other won't so it's pretty simple. If it's leaking there they could have even over-tightened it to the point of stripping out the threads so it can't tighten very well. If that's the case someone will have to do a heli-coil repair on the pan.

Thanks
David

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2000 Honda Accord V6 137k miles

1972 300SEL 4.5 98k miles

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