Okay, maybe I asked this question before, but if I did, I forgot. Sorry.
I have a 2002 Sienna with around 203,000 miles on it. My mileage was at one time high, but now I run maybe 6,000 miles a year, mostly in Mexico, unless we take a side trip in the US when we come back for a month or so.
I think it is maintained well. Mobil-1 EP, once a year at these low miles. May use as much as a quart in 3,000 miles, maybe less.
My concern is, how do high mileage motors fail? Sudden total break-down, or gradual deterioration and if I forget to check oil, it wipes itself out fast?
I am not sure I am asking the question correctly. But, I wonder if I am going to have warning when it goes, or one day it will just stop working without warning, as the 1989 Caravan transmission did at 180,000 miles? Or will it just get worse and worse until I realize it is time to ship it to the glue factory?
I try to anticipate failures since I am far from good repairs. Any advice appreciated.