1. Attachments are working again! Check out this thread for more details and to report any other bugs.

Burning 3.9qts every 1000 miles

Discussion in 'Gen 2 Prius Main Forum' started by Fatmatt86, Dec 5, 2018.

  1. dolj

    dolj Senior Member

    Joined:
    May 14, 2012
    7,447
    3,751
    0
    Location:
    Wellington, New Zealand
    Vehicle:
    2007 Prius
    Model:
    N/A
    If I read the same post as you, I don't think he said to do that. From what I remember, it was using ATF as an engine flush while doing the oil change. That's what I'd be doing, if I was trying anything at all.

    The paint thinner and carb cleaner were used as a piston soak.
     
    #61 dolj, Jan 31, 2019
    Last edited: Jan 31, 2019
  2. sam spade 2

    sam spade 2 Senior Member

    Joined:
    Mar 31, 2018
    7,035
    2,780
    0
    Location:
    USA
    Vehicle:
    2017 Prius c
    Model:
    Four
    Apparently you are right.
    Sorry.
     
  3. Fatmatt86

    Fatmatt86 Member

    Joined:
    Dec 5, 2018
    84
    90
    0
    Location:
    Fort Worth
    Vehicle:
    2007 Prius
    Model:
    Base
    Well, I picked up a bottle of sea foam and stuck 4 ounces in the oil and 12 ounces of seafoam in the gas tank, which had about 5gallons to maybe clean the cat enough to drop the check engine light. I've already ran through the gas and it's still on. Currently at 246,804 miles. We'll see if the seafoam has any effect on the oil.
     
  4. sam spade 2

    sam spade 2 Senior Member

    Joined:
    Mar 31, 2018
    7,035
    2,780
    0
    Location:
    USA
    Vehicle:
    2017 Prius c
    Model:
    Four
    It certainly made the oil thinner and that should make it disappear quicker.

    IF, and only if, your problem is caused by stuck rings, it might help some.
    Highly unlikely.
     
  5. Skibob

    Skibob Senior Member

    Joined:
    Sep 14, 2018
    2,912
    1,494
    0
    Location:
    Northern California
    Vehicle:
    2006 Prius
    Model:
    N/A
    The stuff is thinner than 5w-30 oil? That’s practically thinner than water already.
     
  6. sam spade 2

    sam spade 2 Senior Member

    Joined:
    Mar 31, 2018
    7,035
    2,780
    0
    Location:
    USA
    Vehicle:
    2017 Prius c
    Model:
    Four
    It contains mostly naptha (white gas), alcohol and petroleum distillates (kerosene), all of which are solvents that ARE thinner than water.
     
  7. Rmay635703

    Rmay635703 Senior Member

    Joined:
    Oct 16, 2016
    2,567
    1,595
    0
    Location:
    Somewhere in Wisconsin
    Vehicle:
    2013 Chevy Volt
    Model:
    N/A
    Solvents like acetone are as thin as water,

    Generally once you get the motor warm the sea foam should vaporize out but personally I would use it or MMO to soak only and not for running in the oil during a change.

    Compounds that make rings seal better should help your consumption issue,
    Now what could those be?
     
  8. oil_burner

    oil_burner Active Member

    Joined:
    Feb 26, 2017
    249
    126
    0
    Location:
    Canada
    Vehicle:
    2006 Prius
    your engine is done, no snake oil in a bottle is going to fix having been run low on oil that many times. Sooner or later you're going to get rod knock and then soon after that it won't even run. Why not use this opportunity to look for a junkyard motor to swap in if you want to keep the car.
     
    dubit likes this.
  9. Mendel Leisk

    Mendel Leisk Senior Member

    Joined:
    Oct 17, 2010
    54,468
    38,103
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    Lottery on when it seizes, pick the mileage, closest wins who knows.
     
    Fatmatt86 likes this.
  10. golfmk681

    golfmk681 Active Member

    Joined:
    Aug 7, 2017
    262
    105
    0
    Location:
    los angeles, ca
    Vehicle:
    Other Non-Hybrid
    Model:
    N/A
    That's a good run. I'd swap the engine and keep it going. That's my plan :)
     
  11. Fatmatt86

    Fatmatt86 Member

    Joined:
    Dec 5, 2018
    84
    90
    0
    Location:
    Fort Worth
    Vehicle:
    2007 Prius
    Model:
    Base
    Found this post in my neighborhood today. Maybe someone has been stealing my oil... LoL. Highly unlikely, though. I'm a Gambler, willing to make a bet that it reaches over 300,000. I have gone to a junk yard and they have 2 prius. The owner said the engines were $100 if I took it out myself, $200 for them to take out, and $350 with warranty. Gonna drive the original till it goes out. I feel it's got Alot left in her, despite all the posts that it's shot, and not gonna last much longer. Already put over 60k miles in it's current condition, what's another 60k to 300k
     

    Attached Files:

    Bunce likes this.
  12. padroo

    padroo Senior Member

    Joined:
    Jan 11, 2008
    2,763
    2,250
    13
    Location:
    Chesterton, Indiana Another third world country.
    Vehicle:
    2016 Prius
    Model:
    Four
    O2 sensors don't like oil or coolant, they get contaminated.

    If I were buying a used engine I would do a cylinder leak down test on it before I pulled the engine.
    If it won't pass this test it is junk. That's not to say the engine couldn't have other problems but it would eliminate one variable.
     
    Fatmatt86 likes this.
  13. Aztechmaster

    Aztechmaster Member

    Joined:
    Aug 22, 2018
    38
    76
    0
    Location:
    S.D.
    Vehicle:
    2006 Prius
    Model:
    Base
    Leak down test only checks compression rings not oil control unfortunately.

    Posted via the PriusChat mobile app.
     
    Prius Rising likes this.
  14. Mendel Leisk

    Mendel Leisk Senior Member

    Joined:
    Oct 17, 2010
    54,468
    38,103
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    Ok, so it's around 240 now? I'll take 270. Probably lose my shirt.
     
    Fatmatt86 likes this.
  15. padroo

    padroo Senior Member

    Joined:
    Jan 11, 2008
    2,763
    2,250
    13
    Location:
    Chesterton, Indiana Another third world country.
    Vehicle:
    2016 Prius
    Model:
    Four
    Reread my post, I mention that there could be other problems. Not too many things you can check in an junk yard engine until you start it.
     
    Fatmatt86 likes this.
  16. SFO

    SFO Senior Member

    Joined:
    Feb 7, 2017
    5,286
    4,225
    0
    Location:
    Northern California
    Vehicle:
    2007 Prius
    Model:
    N/A
    How much if they install it?
     
    Raytheeagle likes this.
  17. Mendel Leisk

    Mendel Leisk Senior Member

    Joined:
    Oct 17, 2010
    54,468
    38,103
    80
    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    IIRC someone here got a 2nd gen install, and it was almost while-you-wait, around 4 hours. I guess you pretty much HAVE to wait, if that's you're only ride, lol.
     
  18. Fatmatt86

    Fatmatt86 Member

    Joined:
    Dec 5, 2018
    84
    90
    0
    Location:
    Fort Worth
    Vehicle:
    2007 Prius
    Model:
    Base
    Said they wouldn't install it.
     
    SFO likes this.
  19. oil_burner

    oil_burner Active Member

    Joined:
    Feb 26, 2017
    249
    126
    0
    Location:
    Canada
    Vehicle:
    2006 Prius
    $200 for them to pull it is a steal if the engine is in good shape. I just paid $500 at a local junkyard. Hell, what's $100 these days, 4 tanks of gas?
     
    SFO and Fatmatt86 like this.
  20. sam spade 2

    sam spade 2 Senior Member

    Joined:
    Mar 31, 2018
    7,035
    2,780
    0
    Location:
    USA
    Vehicle:
    2017 Prius c
    Model:
    Four
    Depends on exactly HOW they remove it.
    IF.....they do things like cut wires and hoses and pipes......then it might not be such a good deal after all.