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. SFO

    SFO Senior Member

    Joined:
    Feb 7, 2017
    5,286
    4,225
    0
    Location:
    Northern California
    Vehicle:
    2007 Prius
    Model:
    N/A
    Have you done a piston soak yet? Try a solvent like berrymans b-12 chemtool, or Kreen from kanolabs.

    There are also ester oils/cleaners that you can run in the engine, like https://www.hplubricants.com/ or the "blue restore" jug for $90.
     
    Fatmatt86 and Rmay635703 like this.
  2. Fatmatt86

    Fatmatt86 Member

    Joined:
    Dec 5, 2018
    84
    90
    0
    Location:
    Fort Worth
    Vehicle:
    2007 Prius
    Model:
    Base
    I've tried Marvel Mystery Oil and it had no effect on the consumption
     
  3. Fatmatt86

    Fatmatt86 Member

    Joined:
    Dec 5, 2018
    84
    90
    0
    Location:
    Fort Worth
    Vehicle:
    2007 Prius
    Model:
    Base
    Just an update. I'm at 320,011 miles and the Prius is still running strong.
     

    Attached Files:

  4. qmanqman

    qmanqman Active Member

    Joined:
    Mar 29, 2020
    297
    110
    0
    Location:
    CO
    Vehicle:
    2007 Prius
    Model:
    One
    I used carb cleaner. You don't have to let it sit over night. Be careful not to spray it on rubber parts. Carb cleaner eats rubber.

    It improved my oil burning but didn't solve it before I sold the car. Had I kept the car I'd have kept trying it every oil change.
     
    Fatmatt86 likes this.
  5. douglasjre

    douglasjre Senior Member

    Joined:
    Sep 13, 2008
    1,763
    616
    0
    Location:
    Orlando, FL
    Vehicle:
    2010 Prius
    Model:
    ----USA----
    Hey fat Matt what's your main occupation?
     
  6. PriusCamper

    PriusCamper Senior Member

    Joined:
    Mar 3, 2012
    10,897
    4,418
    0
    Location:
    Pacific Northwest, USA
    Vehicle:
    2007 Prius
    Model:
    Two
    Motor oil salesman...
     
  7. Fatmatt86

    Fatmatt86 Member

    Joined:
    Dec 5, 2018
    84
    90
    0
    Location:
    Fort Worth
    Vehicle:
    2007 Prius
    Model:
    Base
    Lol
     
    Prius Rising likes this.
  8. Fatmatt86

    Fatmatt86 Member

    Joined:
    Dec 5, 2018
    84
    90
    0
    Location:
    Fort Worth
    Vehicle:
    2007 Prius
    Model:
    Base
    I work for a pyrotechnics company. We do big fireworks shows all over the US
     
  9. SFO

    SFO Senior Member

    Joined:
    Feb 7, 2017
    5,286
    4,225
    0
    Location:
    Northern California
    Vehicle:
    2007 Prius
    Model:
    N/A
    Yeah, that and seafoam are worthless for this sort of application. Use something with actual cleaning power, like mentioned below.
     
    Fatmatt86 likes this.
  10. PriusCamper

    PriusCamper Senior Member

    Joined:
    Mar 3, 2012
    10,897
    4,418
    0
    Location:
    Pacific Northwest, USA
    Vehicle:
    2007 Prius
    Model:
    Two
    You can't clean an engine that's burning 3.9 quarts of oil per 1K miles. And because we don't yet have pollution cops confiscating vehicles like this for very valid reasons, I think we need to start a gofundme to buy this dude a replacement engine and end the planet killing nightmare that this car has become.

    I just did a Google search on amount of hydrocarbons produced for every quart of oil burned in an engine and couldn't find a decent reference but it's a huge amount of pounds of carbon emissions.

    FRIENDS DON'T LET FRIENDS BURN TOO MUCH ENGINE OIL!!!
     
    Fatmatt86 likes this.
  11. pasadena_commut

    pasadena_commut Senior Member

    Joined:
    May 2, 2019
    1,350
    409
    0
    Location:
    Southern California
    Vehicle:
    2007 Prius
    Model:
    N/A
    Hah, you think it is bad with a Prius? My father had an early model Corvair that got to the point it was burning a quart of oil per tank of gas. There were no emissions controls whatsoever on that vehicle, and the back of the car was pitch black from all the oil. You did not want to drive behind it!
     
  12. douglasjre

    douglasjre Senior Member

    Joined:
    Sep 13, 2008
    1,763
    616
    0
    Location:
    Orlando, FL
    Vehicle:
    2010 Prius
    Model:
    ----USA----
    Appreciate the irony of this one: your car blow smoke like a firecracker about to go off lmao
     
  13. kutcht1

    kutcht1 Member

    Joined:
    Nov 25, 2013
    295
    81
    0
    Location:
    Andover, Minnesota
    Vehicle:
    2008 Prius
    Model:
    N/A
    Only read a few pages of this thread but is sounds like the rings are for sure coaked up. I think I would do as mentioned with the piston soaks (B-12 or other) a few times using non-synthetic oil. If I saw no improvement and the rest of the car is in good shape you can install a used engine with decent miles for cheap and easily in a weekend. I have done this and no part of it was difficult.
    TomK
     
  14. richard schumacher

    richard schumacher shortbus driver

    Joined:
    Mar 27, 2004
    7,663
    1,038
    0
    Location:
    United States
    Vehicle:
    2004 Prius
    Model:
    N/A
    Think of all the money he's saved versus going to a dealer for service!
     
  15. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    107,693
    48,945
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    this is a great thread, keep on truckin' matt!!
     
  16. Paladain55

    Paladain55 Active Member

    Joined:
    Oct 20, 2021
    370
    140
    0
    Location:
    The South
    Vehicle:
    2010 Prius
    Model:
    Two
    This thread was a good read. Matt try a piston soak with e85 one weekend. $5 and a couple hours of actual work. Would be interesting to see on your car. Yup i agree the interstate and higher load and rpm is typically when they burn more oil. Around town typically the oil goes longer.
     
    Fatmatt86 likes this.
  17. ColoradoBoo

    ColoradoBoo Senior Member

    Joined:
    Jul 19, 2019
    912
    598
    4
    Location:
    Monument, Colorado USA
    Vehicle:
    2017 Prius
    Model:
    Two
    What? I don't remember that job being advertised at my High School job fair! There would've been a LINE behind that table! :)

    (But zooming around in Air Force jets was quite a fun time, too! I still miss it....retired in 2004)
     
  18. Calimobber

    Calimobber Member

    Joined:
    Jun 24, 2019
    94
    82
    0
    Location:
    Death Valley
    Vehicle:
    2008 Prius
    Model:
    ----USA----
    Its beens while since I read though this and someone prob suggested seafoam in the oil already but ill add another shout for it.

    My buddy changes his oil at 3k miles and had zero oil on the dip stick. I got him to put seafoam in the oil 500 miles before he changed it and it was a miracle for him. 3000 miles later still was half way on the dip stick.

    Same with me, in the oil 500 miles before( ive done a few times) and it seems back to normal not much burning.

    seafoam in the intake didnt seem to help me. Just putting the info here.
     
  19. ydpplqbd

    ydpplqbd Active Member

    Joined:
    Aug 1, 2019
    542
    250
    0
    Location:
    NJ
    Vehicle:
    2006 Prius
    Model:
    Three
    Answer: Shell Rotella 15W-40.
     
    Rmay635703 likes this.
  20. Fatmatt86

    Fatmatt86 Member

    Joined:
    Dec 5, 2018
    84
    90
    0
    Location:
    Fort Worth
    Vehicle:
    2007 Prius
    Model:
    Base
    I hit a milestone on the way home from a baseball game tonight 325,000 miles and still running strong. This engine still got a lot of life left of her. Will do a piston soak here shortly as I’m gonna change spark plugs running P0171 code (running lean Bank one) but there’s no loss of power, it doesn’t idle roughly, and the engine isn’t knocking. I have had this Code before about two years ago and simply cleaning the spark plug area and changing spark plugs removed the code. Probably just excess oil in Bank 1. Will try the sea foam method when I do this process. Still running strong and no, there is not a cloud of smoke behind me as I drive the vehicle. This Prius where does all that does not smoke.
     

    Attached Files: