You really don't need a crush washer for the oil plug if the original flat washer is still there. Just don't drop it in the oil drain pan when removing the drain plug and find it later. Yup, many of us have done that. If the original owner lost the washer you can go to your local auto parts store with drain plug in hand and buy either a brass (?) or nylon washer that fits. Others have just gone sans washer and reinstalled the drain pan bolt. Most of the cars and trucks now days don't even come stock with a washer. Just make sure to wipe the mating surfaces clean of any dirt and grit which you should do anyway and don't over torque the bolt.quick related question... where can i get the right size crush washer for the drain plug?
#21 in this fiche image. Same one used on 1,087 (or so) Honda models. Buy half a dozen when you get some other part(s) and you'll have enough to last years.quick related question... where can i get the right size crush washer for the drain plug?
I hate to point this out but the so called flat washer you are referrring to is the crush washer. They are made of aluminum and look like a regular flat washer. There is no flat washer, just the crush washer and the drain plug.You really don't need a crush washer for the oil plug if the original flat washer is still there. Just don't drop it in the oil drain pan when removing the drain plug and find it later. Yup, many of us have done that. If the original owner lost the washer you can go to your local auto parts store with drain plug in hand and buy either a brass (?) or nylon washer that fits. Others have just gone sans washer and reinstalled the drain pan bolt. Most of the cars and trucks now days don't even come stock with a washer. Just make sure to wipe the mating surfaces clean of any dirt and grit which you should do anyway and don't over torque the bolt.