I just changed the oil in my Tacoma V6 and I didnt see a crush washer on there. It may be stuck crushed on the pan but I couldnt really see very well under the truck (skid plates and it was getting darker out) Anyway, I was wondering if there is a problem not using the crush washer? if it does not leak it should be fine correct??? it just seals it, does not really help keep the drain bolt from backing out? Like I said I dont remember if it had one on there the last time I changed it. I guess I will just keep and eye on the oil level and when it warms up, drain it put a fumoto valve on and put the oil back in. Its messy but I just dont want to waste Mobil 1 Extended Performance. So does anyone know for sure if the 3.4 L V6 has a crush washer on the pan?