Thanks for the feedback Justen. I was beginning to wonder if TRD specifcally thought the design was not suited to the 1UZ rather than simply thread differences. Got pics?
I can't post pics here unfortunately as no URL address. If any of your mates have ZOOM Issue 99 there's a full feature with plenty of pics there or you can try this link
i didnt put the trd sticker on it though, as it is in a bmw and it looks better without it. i dont know what it is meant for, as i just went into my local toyota place who had trd stuff and they happened to have an ls400 on the lot, which i tried it on and fitted. im pretty sure toyota standardise their oil caps so most are the same no matter what engine you have.