Oil change interval: time important?

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by alokeprasad, Dec 22, 2009.

  1. alokeprasad

    alokeprasad Member

    Joined:
    Dec 6, 2009
    162
    15
    0
    Location:
    Ohio
    Vehicle:
    2010 Prius
    Model:
    III
    I expect to put on about half the # of miles typically used in oil change interval requirements (5000 mi / 6 months). I'll probably have 2500 mi in 6 mo. Thus, my oil changes will be driven by the calendar, not mileage.

    Should I still get the oil change every 6 mo? Even with the synthetic 0W20 oil?

    I'd think that the engine wear would depend on the miles driven. Will the 0W30 break down in 6 mo?

    It is not that my car is sitting around and not being used for prolonged periods. I'll be driving to work, shopping, errands etc. every week.

    Of course, if this 5000mi/6mo is a requirement for maintaining my warranty, then the whole discussion is moot ...
     
  2. thbjr

    thbjr Member

    Joined:
    Nov 15, 2009
    326
    63
    0
    Location:
    Phoenix
    Vehicle:
    2010 Prius
    Model:
    III
    Read this thread. Toyota is/has just changed the OC interval to 10,000/1 year.
     
  3. josh2008

    josh2008 Active Member

    Joined:
    Sep 2, 2008
    365
    144
    0
    Location:
    Princeton, WV
    Vehicle:
    2004 Prius
    Model:
    N/A
    Actually, it's different for each region. Us dealers in the CAT region are still being told 5k/6 months. Also worthy to note, that document is from that regions office
    NOT TMC. To me, this is not an official Toyota change.
    al
     
  4. alokeprasad

    alokeprasad Member

    Joined:
    Dec 6, 2009
    162
    15
    0
    Location:
    Ohio
    Vehicle:
    2010 Prius
    Model:
    III
    I will still have only 5000 mi in 1 yr.

    But, I suppose that pushing the interval to more than 1 yr is asking for trouble ...
     
  5. dc202

    dc202 Member

    Joined:
    Apr 14, 2009
    230
    22
    0
    Location:
    Pacific Northwest
    Vehicle:
    2010 Prius
    Model:
    III
    FWIW, Honda requires an oil change after one year, regardless of mileage or what the oil sensor life indicator tells you. (I currently only drive about 4000 miles in 12 months.) I am always changing the oil after 12 months on the Honda. I plan to change the oil once a year on the Prius, as well. Supposedly, there is deterioration that occurs in engine oil over time, regardless of use.