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I hit 200k recently too, bought used at 63k. As part of my 200k preventative maintenance I replaced the radiator(original), upper and lower radiator insulators, radiator cap, both radiator hoses, thermostat, coolant, transmission filter, flushed 14 quarts of transmission fluid through the radiator connection, replaced both low and high beam bulbs(probably original), turn signal bulbs(original), rear brake shoes(original), and restored the headlight housings due to hazing. Also got a new spare tire and wheel. Then promptly went on a 1,400 mile road trip and it ran like a champ. On to 300k!
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2006 LE
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I hit 200k recently too, bought used at 63k. As part of my 200k preventative maintenance I replaced the radiator(original), upper and lower radiator insulators, radiator cap, both radiator hoses, thermostat, coolant, transmission filter, flushed 14 quarts of transmission fluid through the radiator connection, replaced both low and high beam bulbs(probably original), turn signal bulbs(original), rear brake shoes(original), and restored the headlight housings due to hazing. Also got a new spare tire and wheel. Then promptly went on a 1,400 mile road trip and it ran like a champ. On to 300k!
View attachment 51315
Was the plastic water inlet tube in good shape? Thats the tube that houses the thermostat. Are you on original drums also?
 

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Was the plastic water inlet tube in good shape? Thats the tube that houses the thermostat. Are you on original drums also?
I had the water tube under the intake manifold leaking, it shorted out one of the anti-knock sensor. So I took that all apart, cleaned all of the intake tubes, replaced all of the gasket I could, like valve covers and such. Then I cut the little plastic piece in front of the air scoop to allow colder air to inter the air duct, LOL
 

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There was a very small leak from my housing and I took care of it. Luckily it wasn't bad enough to short the sensors.
 

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2010 Sienna 1968 Chevy Nova 2001 Honda 919
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Actually I got this used two years ago with 72k so I did over a 100k in 2 years. I am a plumber and work on hotels. It’s a 1-1/2 ride each way and I work 5-7 days a week. So yes I do 50k plus a year!!
 

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Hello there! Just inherited my father in laws 2005 with 304,900 and a badly cracked thermostat housing! After the $42 part as well as fresh gas and battery (it sat for 18 months), it's running like a top! I'm hoping to hit some of your numbers in it!
 

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I bought last year 2006 Sienna Limited with 68K miles. Got new tires, rear shocks, new breaks, new fluids and belts because it has been sitting for years. We have been on multiple trips with her. Now we have 85K and car is running great. All is fully functional.
 
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