$500 Parts Prius P0301-Possibly Rings

If it doesn’t burn coolant then register it

 

Yes, then check out the many threads on EGR issues, and cleaning EGR components.

 

Wow, you found a smokin' deal. (a little oil burning humor there) One quart between oil changes? WTH? I'm trying to think of a car I've ever had that didn't require that. Toyota spec is a quart every 600. That mechanic put the screws to her. There is no EGR circuit on the Gen 2 like there is on the Gen 3.

Throw some plugs in it, do some basic checks, fluid swaps and carry on. See where it leads.

Definitely purchase techstream so you can go online with the car go proper troubleshooting and health checks. That car probably has a lot of life left in it.

I've had two 2005s with over 280k miles. Both were running great with about the same oil burn rate that you describe. Never had any problems with them. I gave one to my son and he averaged 40-44 mpg because he did a LOT of 5 minute trips to work. I used the other one for driving 27 minutes each way to work and was consistently 48-52mpg. The first one, we sold to one of his lifelong friends and it's still going strong. I asked her to bring it to me monthly for a check up, so I get to keep a good eye on it. My son now has another 2005 @ about 195-200k and it's a beast. The other one was run off the road and totaled. Now I have my 2007, purchased 2 years ago @143k with a failed HV battery. Now at about 188k. Running like a champ.

 

This may get better tailored responses in the 2nd Gen forums

 

There was a short period were 4th gen people were coming here saying it was fine for E85 gasoline put in gen 3s. The manual said no more than e10 and so did the gas cap, they literally argued with me til I uploaded a screenshot of the manual and gas cap. Glad those days are behind.

 

So just out of curiosity, can the 4th Gens use E-85?

 

This may get better tailored responses in the 4 Gen forums

 

Yes it does. One person uploaded their manual for me to prove that the Prius was designed for E85 also. So that prompted me to ask, is the manual from a 3rd? They said it was for the 4th. After uploading the e10 fuel requirements and gas cap from my manual, That’s when I knew there wasn’t enough red wine in the world to drink back my time lost replying to entire conversation muahaha.

 

so....maybe more red wine is necessary, but this is what I find in the 4th gen owners manuals online at the Toyota Owner's site