i have always had very high respect for LE products, having used their industrial products in some situations where other name brand products fell flat on their face. while i am not a fan of 10wXX oils, i find these reports fascinating, the oil is doing extremely well.
i currently have a 2000 Tundra with 151k, and my father has a 2000 with 44k. there are 10k UOAs of both of these trucks up on the board, you can search for them under my screen name if interested. the V8 in these trucks will run long after the truck is a pile of rust, and corrosion is an issue with the earlier versions of this model. while i don't live in the north, my tundra is starting to see some frame corrosion, which is driving my current change from pushing it to 300k to starting a leisurely search for a 2006 with low miles.
while i would offer my own opinion that 10k OCI are quite valid, i would also say that the current OCI is doing quite well for the OP, and that with the money he has saved on not buying a new truck, he can run every UOA past terry twice.
hey, if he is doing above 5k, i give him kudos. most people in the US will never go past 3 and worry while doing it.