We have a '99 SR5 we've owned since 2004, now crossed over the 200K mark. We've changed oil every 3K as it sees mostly City driving, amounts to twice a year with the number of miles we drive annually. Doesn't burn a drop of oil. I was actually pretty surprised to see our new 4Runner's maintenance schedule say every 10K, and decided that since we want to keep this vehicle for the foreseeable future, we just couldn't quite go with that and sleep at night, especially after seeing that video about newer cars being more prone to burning oil. I assume this takes into account all the synthetic out there...it's not that the oil is breaking down as much as gets dirty from combustion.