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Service used Synthetic Oil on my 2009...?!?!?

Discussion in 'Gen 2 Prius Main Forum' started by macmaster05, May 10, 2010.

  1. macmaster05

    macmaster05 Senor Member

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    I just got my car back from service for 20,000 miles. According to my invoice they used S5W30 oil, i.e. Synthetic Oil. I've heard repeatedly that the Prius Gen II requires non-synthetic oil.

    Now, this is my first time using that auto shop and they claimed to be one of the regions' experts in hybrids (which I believe) - there are a lot of Priuses here. Do I have a problem? Should I go back? I am slightly worried...
     
    #1 macmaster05, May 10, 2010
  2. desertrider2215

    desertrider2215 Member

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    I don't think there is anything to be worried about..maybe I don't worry about my car enough :eek:
     
    #2 desertrider2215, May 10, 2010
  3. Patrick Wong

    Patrick Wong DIY Enthusiast

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    The G2 Prius does not require non-synthetic oil. It does require use of 5W-30 viscosity oil which can be synthetic or not.

    Use of other viscosity oil is at your risk. Heavier weight oil may lead to no-start situations in cold weather. Lighter weight oil may result in oil consumption in very hot weather.
     
    #3 Patrick Wong, May 10, 2010
  4. macmaster05

    macmaster05 Senor Member

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    Thanks Patrick, I think you mean "does not require synthetic oil" though, right?

    I just thought I remembered hearing otherwise from the dealer when I bought the car...I dont know why...
     
    #4 macmaster05, May 10, 2010
  5. ski.dive

    ski.dive Active Member

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    ***i've only use mobil1, since the car was new!!!
     
    #5 ski.dive, May 10, 2010
  6. dogfriend

    dogfriend Human - Animal Hybrid

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    You can use synthetic or non-syn oil, as long as it meets the viscosity and other requirements listed in the owners manual. I have been using syn oil (Mobil 1) since the second oil change (~ 10k miles) and many others use syn oil too.
     
    #6 dogfriend, May 10, 2010
  7. a_gray_prius

    a_gray_prius Rare Non-Old-Blowhard Priuschat Member

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    My car's mileage increased by ~4mpg when I switched to Mobil 1. I have been using it since I got the car.
     
    #7 a_gray_prius, May 10, 2010
  8. auricchio

    auricchio Member

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    Mobil 1 for me too, since the first oil change. I have oil & filter changed with tire rotation every 5k miles, which is more often than Mobil 1 really needs, but what the heck.
     
    #8 auricchio, May 10, 2010
  9. w2co

    w2co Member

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    "I have oil & filter changed with tire rotation every 5k miles, which is more often than Mobil 1 really needs, but what the heck."
    It never hurts to change the engine oil. Treat it as a "flush" especially after a long trip.
    What filter do you use?
     
    #9 w2co, May 12, 2010
  10. yibo829

    yibo829 Junior Member

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    m
     
    #10 yibo829, Mar 31, 2012
  11. Britprius

    Britprius Senior Member

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    According to Toyota the GEN2 can use any of the oils listed on this application chart.
    I have been using 0w20 Toyota oil or Mobil 1 from the first oil change in my 2008 now at 80,000miles and uses know measurable oil between oil changes at 10,000mile intervals
     

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    #11 Britprius, Mar 31, 2012
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