342k miles on a 2008 Prius, been in the family since about 160k. Replaced only brakes, tires, oil/filter, changed ATF, spark plugs, and thermostat/coolant one time. Occasionally clean the intake/TB and MAF. Original traction battery still works great.
Around 275k miles started adding Rislone with oil changes to address oil consumption (was using about a quart/1500 miles), then did a piston soak around 320k. No longer using Rislone, but it now seems to be stable burning a quart of 5w-30 every 4000 miles. Fuel economy is about 42mpg in summer, 36-38 in winter, with a 90% highway commute @ 75mph.
Needs a front wheel bearing and some exhaust repair (leaking near the manifold) but otherwise she’s still rattling & creaking down the road.
Around 275k miles started adding Rislone with oil changes to address oil consumption (was using about a quart/1500 miles), then did a piston soak around 320k. No longer using Rislone, but it now seems to be stable burning a quart of 5w-30 every 4000 miles. Fuel economy is about 42mpg in summer, 36-38 in winter, with a 90% highway commute @ 75mph.
Needs a front wheel bearing and some exhaust repair (leaking near the manifold) but otherwise she’s still rattling & creaking down the road.