i often tell people of the reason i bought my tacoma is my little sister has had her 97 3.4 4wd since it had about 40,000 miles on it and now has around 300,000. she is someone i would call poor with maintenance. she commutes very short distances for work, so the truck rarely has a chance to warm up, yet it just goes and goes. she has replaced the starter a couple of times, the clutch, the o2 sensors, has had the rear end go out, and had to replace some freeze plugs in the block, but i look at all of these as wear and tear or simply being neglectful of keeping it up. what amazes me, for an engine with that many miles, it is still very strong, and when it is tuned up (usually by me) it runs perfect. probably the perfect vehicle for her, considering it has been so well used and does everything it has been asked to do. mine has 180,000, and i haven't had a single serious issue with it.