thats a great way to make sure no one from here will ever want to send parts overseas.
have you considered that since it is a "gas" cap it is held up in customs on a hazmat issue?
this is the problem with using the United States postal service to ship overseas. everyone wants the cheapest shipping possible but when you accomodate that request you lose the oppurtunity to track the item. I would recommend to everyone on this board thinking about sending parts overseas to only ship either FEdex or UPS. the cost is higher but as a sender you have much more protection against getting burned by an unscrupulous buyer. it happened to me through ebay/paypal, i lost quite a bit of money AND my item that i sold.
-Tim