I took advantage of holiday break and changed the oil in my Mazda 3. While the oil was draining I inspected the drain plug. It reminded me of threads where quite a lot of people were rather concerned about the drain plug and crush washer. So I decided to post some pics of the drain plug and crush washer.
Mine is original with OEM washer. That is almost 6 years and 86k miles. I always clean the threads before I hand tighten the plug until snug. I never had a leak or even a slight sweat around the plug. The washer is so nicely "fused" with the plug that I don't see the point of messing this up with some cheap crush washers. The old saying "If it ain't broke, don't fix it" certainly applies in my case.
Mine is original with OEM washer. That is almost 6 years and 86k miles. I always clean the threads before I hand tighten the plug until snug. I never had a leak or even a slight sweat around the plug. The washer is so nicely "fused" with the plug that I don't see the point of messing this up with some cheap crush washers. The old saying "If it ain't broke, don't fix it" certainly applies in my case.