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

Gas Mileage Way Off!

Discussion in 'Gen 2 Prius Fuel Economy' started by lsmall2219, Feb 28, 2019.

  1. lsmall2219

    lsmall2219 New Member

    Joined:
    Feb 28, 2019
    3
    0
    0
    Location:
    92056
    Vehicle:
    2005 Prius
    Model:
    Two
    2005 prius here.. 97k miles..After putting on new tires..was told are grt and fuel efficient.. gas mileage is off between 125-175 miles a tank.. had the tires checked no leaks, etc perfect condition.. monitoring the psi and it flutuates a bit.. but that shouldnt b the prob.. plz help i drive a lot for work..
     
    #1 lsmall2219, Feb 28, 2019
    Last edited: Feb 28, 2019
  2. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    110,129
    50,045
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    i don't understand what 'gas mileage is off between 125-175 miles per tank.

    can you convert that to mpg?

    what are you comparing it to?

    how long have you owned it?

    how many miles on her?

    exactly what make and model tire?

    is the maintenance up too snuff?
     
    #2 bisco, Feb 28, 2019
  3. Zeppo Shanski

    Zeppo Shanski Active Member

    Joined:
    Feb 5, 2019
    293
    154
    0
    Location:
    Chicagoland
    Vehicle:
    2005 Prius
    Model:
    Base
    It's a funny thing. I haven't had my '05 G2 for long. I'm finding that I get the best milage when I just drive nicely and don't look at the electronics. Now I'm not sayin' ... I'm just sayin' ... just drive your car for a while and let things (new tires) settle down. Thinks are much nicer when you don't worry about them.
     
    #3 Zeppo Shanski, Feb 28, 2019
  4. dolj

    dolj Senior Member

    Joined:
    May 14, 2012
    7,854
    3,965
    0
    Location:
    Wellington, New Zealand
    Vehicle:
    2007 Prius
    Model:
    N/A
    I can be the problem if you are fluctuating towards being under-inflated. You are running recommended pressures of 35 PSI front and 33 PSI rear, aren't you? If under these pressures, you will not get good MPG.
     
    #4 dolj, Mar 1, 2019
  5. lsmall2219

    lsmall2219 New Member

    Joined:
    Feb 28, 2019
    3
    0
    0
    Location:
    92056
    Vehicle:
    2005 Prius
    Model:
    Two
     
    #5 lsmall2219, Mar 1, 2019
  6. lsmall2219

    lsmall2219 New Member

    Joined:
    Feb 28, 2019
    3
    0
    0
    Location:
    92056
    Vehicle:
    2005 Prius
    Model:
    Two
    Yes of course to factory specs.. and doesnt help
     
    #6 lsmall2219, Mar 1, 2019
  7. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
    110,129
    50,045
    0
    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    That makes sense I guess. Tires can make a big difference. Once you determine the make and model, we can do some more investigating.
    Not only do you need low rolling resistance tires, but there can be a break in period
     
    #7 bisco, Mar 1, 2019
(You must log in or sign up to post here.)