103000 0n my 05,mobile one oil and tranny flush every 30k,borla catback and airraide intake and one heavy foot.tows a 4k camper every summer and dont plan on changeing timeing belt till 150k.just did tune up belt and plugs other than that tires(spin them to much)
668,000 is one HELL of a lot of miles. I can only dream about that right now, as my 2004 Limited Double Cab has 185,000 miles, with ball joint warranty work, front oxygen sensors replaced, oil changes every 5K with Castrol 10W30, timing belt and water pump at 180K. Will look at replacing rotors and brakes at 200K as she is starting to give me the shimmy/shake again when braking hard. Toyota says rotors can take two turnings, but I don't think I am going to put Toyota rotors back on, as the last turning didn't seem to last very long with the smooth braking. I'm glad to see lots of others with lots of miles, because my 1998 4Runner with 235,000 miles may not be as dependable as the Tundra for long trips, and my 2008 RAV with 125K is too small to pack too much stuff in.