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How long can C-Biscuit sit without being driven?

Discussion in 'Prius c Main Forum' started by rosethornil, Nov 16, 2022.

  1. rosethornil

    rosethornil Member

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    Due to personal reasons, my 2016 Prius C is sitting in a garage and has been for six weeks. I filled the tank up before I parked it in the garage.

    The car has 106,000 miles and is in excellent shape. Yes, the gasoline in Illinois is 10% ethanol. I’m just wondering how often I need to pull it out of the garage and have someone drive it.

    I am wondering if our gas-sipping Cs are more sensitive to aging gasoline than most cars.

    Thanks for your help!!
     

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  2. bisco

    bisco cookie crumbler

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    you might want to squirt some gas saver in the tank and drive it once a week.

    the 12v should have a smart charger, or disconnect the neg terminal.

    watch the bars on the hybrid battery, i would drive it enough to keep them at 4 or more
     
  3. Leadfoot J. McCoalroller

    Leadfoot J. McCoalroller Senior Member

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    No special sensitivity to fuel.

    I think bisco is referring to fuel stabilizer, to prevent chemical breakdown. A 2oz bottle sta-bil is a fine investment.

    I'd say once a month is fine for exercise.
     
  4. Kerrynzl

    Kerrynzl Junior Member

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    You're over thinking it.
    The "C" engine is basically multi-fuel Atkinson cycle [High compression ratio but the cylinder pressure is bled-off by cam timing]
    The O2 sensors and air flow meters will correct this.

    I have a Ferrari that was last gassed up in February 2022 and sits on a battery tender. When I started it, I could smell the Ethanol initially then it goes away. [So I don't give a sh**]

    Ethanol will not evaporate in the fuel lines and fuel tank which is a sealed system, and any fuel returning to the tank mixes it back up.
    It is more off a problem on carburetor engines.
     
  5. rosethornil

    rosethornil Member

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    Very helpful!!

    Thank you so much!!
     
  6. PriusII&C

    PriusII&C Active Member

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    I have parked my 2012 Prius-C in my garage since May 2000. During the past 2.5 years, I started (not drived) it only every 2 - 4 months to charge the traction battery, and never see battery level bar move before charging it.

    I also add fuel-stabilizer to the fuel tank. Last December I sipped out the fuel from my Prius-C and put it into my Prius. My Prius performed normally with the 19 months old gasoline.

    The auxiliary battery needs more care. I disconnected it from the car and charged it once per month.

    I also partially lifted the car on 4 jack stands to prevent tire flatting.
     
  7. kingnba6

    kingnba6 Active Member

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    I have left my C parked for 6 weeks without doing any special treatment. Just hopped back into it and turned it on.