I'm a newly owner of FZJ80 and Iwould like to know what oil are you guys using on your 1FZ-FE engine.. I know this has been discussed here but for some reason I cannot find it. I was thinking using the Castrol Edge 10W-30 or the Rotella T6 5W-40.. any recommendation? I live in Oregon so We don't really get the extreme cold but sometimes during winter we'll get down to around 15* not very often though.. and occasionally gets to 100* during summer.