200,000 Mile Club

I can finally fill this out now! 206,000 miles currently on our 2015 Prius Four. We bought it new in July of 2015 and my wife used it up until March of 2024 and 173,000 miles. We got her a new Rav4 hybrid and I took over driving the Prius at that time.

1) Did you replace the HV battery pack? Do you maintain it? No it has the original HV battery. Only opened it up once at 173k to clean the fan.
2) Did you replace the 12v battery? No still original 12V battery
3) Did you replace the transaxle fluid? How often? Replaced at 173k, was completely black at that time. Changed again at 200k.
4) Did you replace the brake pads? Yes, on our 3rd set. My wife drove it like she stole it and I used autopart store pads and rotors the first time I changed them, they didn't hold up nearly as well as the oem pads/rotors which are now installed.
5) Your lifetime MPG (if available)? 40-45mpg in the winter, 50-55mpg in the summer
6) How often do you change your oil? Does your Prius consume oil? What brand / product did you use? Oil was changed by the dealer every 10k miles when my wife was driving it, now I change it every 5k with Mobil 1. I converted to a spin on filter as well. It does not consume any oil.
7) How about posting a picture of 200,000 miles on ODO?
8) Did you install an oil catch can? How often do you inspect or dump it? No occ installed
9) Have you cleaned the egr circuit? How frequently? Once @ 173k, planning to do about every 50k miles from now on
10) Any other maintenance? Engine and inverter coolant flushed twice, spark plugs changed twice, preemptively changed waterpump and pcv valve, installed updated intake manifold, been through a few sets of tires, brakes flushed a few times, engine air filter and cabin air filter changed as needed.

 

I just bought a 2010 Prius II with 240k so count me in. I have not the slightest clue of its history, but it is immaculate, so I imagine it has been maintained just as well. It's averaging 40.8mpg with my lead foot and 90% highway driving. It drives like a new car and still smells new inside! Unbelievable to me that it has 240k miles.

 

2010 Prius Trim level 5 with 17 inch alloy wheels with the oddemeter at 418,000. I bought it back in 2017 with 150,000 miles on it. Back in 2021 at 263,000 my headgasket blew and the engine hydrolocked and blew a connection rod. I replaced the engine with a JDM ENGINE with about 40,000 mile on it and it is still running great

 

JDM engine had reported 40k (miles), and you’ve added 155k (428k-263k), so, if 40k is legit: 195k on current engine. Are you doing any extra maintenance since the swap?

for a little perspective, our 2010 has around 65k, lol.

 

that’s a clean 65k mile Prius you got plenty of mileage before doing any major maintenance.

 

Agree, knock-on-wood, at least for engine. It doesn't burn a drop, and at the rate we're putting on the miles, doubt we'll make 100k.

 

I put in an oil catch can which should help to prevent EGR

Valvoline restore and protect plus BG MOA each oil change and occasional BG EPR flush before draining my oil and when I had the engine swapped I had the shop put in an oil catch can. I love the catch can and I use a motorcycle fork oil syringe to remove blowby oil some times remove up to 60 ml which would be clogging up my intake manifold and gumming up my piston rings and clogging my EGR circuit. Catch cans are essential for increasing your engines longevity. I have drawn up quarts of blowby since 2021 which would have been ingested into the intake manifold leading to gummed up rings and increasing the risk of gumming up the EGR circuit

 

Catch can won’t do much to reduce EGR clogging. Maybe a bit, but…

 

I know the catch can helps to reduce piston ring deposits and intake manifold deposits. I heard oil burning really accelerates EGR clogging and most oil burning is caused by piston ring and oil ring carbon deposits and engine sludge which the catch can will help to reduce these deposits.

 

You are correct excessive oil burning is the root cause of serious (with coding) egr clogging.

Low tension rings used to increase mpg caused gen3 excessive oil burning (shared with many Toyota models of the era) but ring clogging or clogged piston oil return passages are not the reason for the high rate of oil burning. Experiments have proved treatments like B12 can clean the rings and passages BUT excessive oil burning remains. Only the Toyota solution - implemented free when the engines were young - worked. That solution was new design piston and rings.

Since the early gen3 days, Toyota redesigned the head gasket, intake, egr valve, pistons, rings and ecm software for their 1.8L engines. That combination works reasonably well even today, as a result, rebuilt engines work best using those parts.

Still Toyota totally redesigned the engine for gen4 making the engine solid.

 

My Prius original engine started burning oil when the car had about 200,000 miles on it. It kept getting worse until it was burning a quart of oil every 500 to 750 miles. Back in May of 2021 when the car had 263,000 miles on it, I was driving home from work and the engine lost power and started to shudder and then stalled. Turns out the engine hydro-locked on coolant from a blown head gasket and blew cylinder 3. Since the rest of the car was still in good shape and I use my car for work and get paid 70 cents for every mile driven and comparable Gen3 Prius were still selling for greater than $5000 I decided to put a low mileage JDM engine in my car and it really paid off. The engine was $1600 and the labor to put it in was $1500 so I have a great running car for $3100 which is still running great to this day. I guess I got lucky that the JDM engine was able to give me a great running car again and the replacement engine is only driven 5000 miles between oil changes, and I had the shop put in a catch can which has a threaded in dipstick and I draw some of the blowby accumulated liquid out between oil changes. My car has absolutely no problems going 5000 miles without needing to add oil and I am always within the safe range on the oil dipstick. I drive about 40,000 miles yearly and my car earns enough money to pay for its eventual replacement between $1600 to $2000 every month on mileage reimbursements. I test drove a 2023 Prius plugin Prime and man I got to get one of these next because they feel like driving a sport sedan compared to my 2010 and the best part is it goes 44 miles on electric and still gets even better fuel economy than my 2010 when it starts burning gasoline. I live in North central Minnesota and I am still hesitant to go full electric because there are very few highspeed chargers where I live. My wife's cousin owned a Tesla Model Y dual motor which she let me drive when she came to visit from the Twin Cities and it took over 24 hours to top off her battery on 110 volt in my garage so I know I would need to pay an electrician a lot of money to wire a dual bank 220 volt system when I do decide to go full electric. Until then my Prius is making me money every month while driving.

 

Yeah, and that's why nobody charges on a 120V outlet, unless that's the only option.
As for adding EV charging....
I don't know... It depends on how far your box is from where you want the two 240V outlets. 40 or 60 Amp?
Your cousin Eddy can do it much cheaper on the side..... Next time he comes to town !