MR. BAKERZ wrote:oh k so your saying i always have to replace drain plug gasket?
Yes, absolutely! I will add my voice to the others here. The drain plug is made of relatively soft copper and crushes down when tightened to the correct torque (20 ft-lbs. as I recall).
After you tighten a new one onto the engine, if you remove it for any reason - it MUST be replaced. So, never loosen the drain plug - "just to check" for example - unless you plan to change the washer too! Else the oil will leak from there.
Z