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Prius V Fuel Capacity

Discussion in 'Prius v Main Forum' started by Kismet4G, Jan 2, 2012.

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  1. Kismet4G

    Kismet4G New Member

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    Hello Members,

    I got my Prius v 5 over a month ago, and had two questions that I could not find answers to in the Prius v Forum.

    1. What is the real fuel tank capacity of the Prius v please? The manual said 11.9 gallons, but each time I have filled it it only takes 9.5 gallons even though, I see the range left is only 20 miles!?

    2. When I did the research to buy the car in November it said there was lane assist package in the Advance Technology Option I got - but I don't see any mention of it in the manual. Any thoughts or experience here?

    Thanks in advance for taking the time to answer!
  2. ItsNotAboutTheMoney

    ItsNotAboutTheMoney EditProfOptInfoCustomUser Title

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  3. catgic

    catgic Master & Commander Hybrid Guru

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    Kismet4G – ItsNotAboutTheMoney is correctomundo. I just got a Magnetic Gray Metallic "Vee" w/ ATP. There is no LKA―Lane Keeping Assist. They snuck that omission in the small print associated with the Tilt/telescopic steering wheel --- at the very end.

    ATP Option Package:

    · Panoramic View Moonroof with power sliding sunshades
    · Premium HDD Navigation [5] with Entune™ [6] and JBL® — includes 7-in. touch-screen with split-screen capability and integrated backup camera [1] display, AM/FM CD player with MP3/WMA playback capability, eight JBL® GreenEdge™ speakers with amplifier, SiriusXM Satellite Radio [7] capability (includes three-month trial subscription to XM Select Package), HD Radio™ [8] with iTunes® Tagging [9], auxiliary audio jack, USB [2] port with iPod® [3] connectivity and control, vehicle information with customizable settings, hands-free phone capability, phone book access, advanced voice recognition, and music streaming via Bluetooth® [4] wireless technology
    · Entune™ [6] — includes Bing™, iHeartRadio, MovieTickets.com, OpenTable® and Pandora®; XM Data Services including NavTraffic™ [7], NavWeather™, Fuel, and Sports & Stocks. Access to Entune™ [6] services is complimentary for three years. See toyota.com/entune for details.
    · Safety Connect® [21] — includes Emergency Assistance, Stolen Vehicle Locator, Roadside Assistance and Automatic Collision Notification. Available by subscription. Complimentary one-year trial subscription.
    · Dynamic Radar Cruise Control (DRCC) [11]
    · Pre-Collision System (PCS) [22]
    · Advanced Parking Guidance System (APGS) [23]
    · Tilt/telescopic steering wheel with audio, climate, Bluetooth® [4] hands-free phone and Dynamic Radar Cruise Control (DRCC) [11] controls [12] DRCC, but no LKA.

    As the Prius v manual states, the fuel tank holds 11.9 gallons.

    There are probably a couple of reasons that when you drive it down to “range left is only 20 miles,” there is still apparently 11.9 – 9.5 = 2.4± gallons left. First, the HSD Computer uses “Average MPG” not the more or less instantaneous MPG you are getting at or around the point in time when you read the RANGE XXX MILES, and it says, “RANGE 20 MILES.” Second, no doubt, the Toyota engineers are using a conservative calculation to minimize the probability that the RANGE XXX MILES reading will show more miles of driving range left than is actually the case.

    I am sure the Toyota lawyers signed off on this one. Toyota certainly does not want mass occurrence of incidents of “Sudden Running Out Of Gas” (ala their past “Prius, Sudden Unintended Acceleration” headache) in the new, Prius v station wagons across the U.S. and North America.

    The “Vee” is a Caddy In A Kimono, just not one with LKA.
    1 person likes this.
  4. Kismet4G

    Kismet4G New Member

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    Thank you both for taking the time to answer!
  5. russcarver

    russcarver Junior Member

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    So what is the most fuel anyone has put in during a fillup so far? Mine (2nd tank) has been 10.86 gallons or so.

    Also, has anyone run out of gas yet? If so, what was the max miles you achieved on it?

    --Russ
  6. Kismet4G

    Kismet4G New Member

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    Russ how many miles had you done on the tank when you filled up at 10.86?
  7. russcarver

    russcarver Junior Member

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    About 424-426 miles I think.

    --Russ
  8. thomcat

    thomcat Junior Member

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    Filled up in Spokane on January 1, returned to Seattle later that day.
    Wednesday the "Range" reached 0 miles, all bars on the fuel gauge gone.
    Friday, 81 miles after reaching 0 miles range, the EV light kicked on in the upper half of the gauge, and the battery indicator rapidly dropped. 9/10 of a mile later I pulled into the local gas station and added 12.546 gallons. Pulling away, the range indicator now read 437 miles.

    Total miles traveled on one complete tank (and a little battery) - 519.1
    Dashboard estimate of MPG - 43.4
    Actual MPG calculation - 41.4

    This is my first Prius, and I'm still learning Hypermiling, etc.
    AMP likes this.
  9. thomcat

    thomcat Junior Member

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    Doing the math here, 437 + 81 = 518, which is durn close to 519. Ergo, the "range indicator" is just another trip meter... not sure how they come up with a value for a partial fill-up.
  10. Priuswagon

    Priuswagon I love my Prius

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    [IMGLINK][IMGLINK][/IMGLINK][/IMGLINK]

    I am averaging 43.5 miles to a gallon. I took a picture of my mileage it's in my photos.
    :)
  11. M8s

    M8s Retired and Lovin' It

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    Perhaps the filler neck holds 0.6 gallons?
  12. steve 1948

    steve 1948 New Member

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    I have a question about fuel. Does my Prius v have a warning tone for low fuel?
  13. Quentin

    Quentin Member

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    The range indicator isn't an indicator of how far you can go until the tank is empty. It is an indicator for when you should fill up. Running your car out of gas is not good for the vehicle. Thus the engineers set the range for when you should fill up and set the light around 20 miles before you should fill up. With the light coming on at 20 miles, you should have adequate time to find a gas station and fill 'er up. The extra gas also acts as a reserve in case you cannot find a fill station. It acts as a buffer between you and being stranded.

    I don't get the fascination with seeing how long you can go between fill-ups. Going x number of miles takes the same amount of gas whether you fill up ever 400 miles or every 450 miles.
  14. hoddy4

    hoddy4 New Member

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    I agree that you don't want to run until empty, but I know that on my 2004 Sienna the display actually says "DTE" or Distance to Empty which makes it even more confusing.
  15. russcarver

    russcarver Junior Member

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    By slowly filling up the neck, I have got as much as 11.4 gallons in. However, I have noticed the estimate of the remaining miles left is based upon how many miles you got on the last tank (at least it starts with that). I've not seen it go up very often. My highest miles in a tank so far has been 467.
  16. mudmanrv

    mudmanrv Member

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    my guess is that they are reading the position sensor of the fuel gauge... and as most of us have experienced... the top half of the tank always seems to last longer than the bottom half of the tank. mostly due to shape - but also as above mentioned - people that stuff the tank full up to the top of the filler tube ... your first 50 miles haven't even pulled gas from the tank yet - you're just draining the filler neck. one would think that would throw off the mpg display. though they may actually calculate that off of the fuel injector meetering...hard to say..

    another note on low fuel - i don't recommend much below a 1/4 tank. here's why ...
    the electric fuel pumps are for the most part, in tank pumps nowadays. those little motors are liquid cooled by the fuel in your tank.... when you constantly run low on fuel - your pump is not being cooled by a jacket of fuel - thusly - you could prematurely wear out your fuel pump. just a thought.
  17. russcarver

    russcarver Junior Member

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    Hmm...interesting. I love to run my tank down for satisfaction purposes, but, can anyone confirm that:

    1) The Prius V's fuel pump is integrated into the fuel tank?
    2) It's cooled by the fuel?
    3) At what level on the fuel gage the pump would no longer be cooled by the fuel?
  18. mudmanrv

    mudmanrv Member

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    Russ, this is my experience based on GM cars that I've driven ... and the fact that my dad has been a mechanic for 40+ years. With that said ... I wasnt clear above, i'm not saying your car - but meant to generalize that most fuel injected cars these days have in-tank fuel pumps. I just ordered my v ... so i'm not that familiar with Toyota personally, but will be soon. best regards...
  19. mcmoyer

    mcmoyer Junior Member

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    so today I was feeling like crap on the way into work so I didn't feel like stopping to get gas. I ended going 10 miles past the "0 miles" range. I ended up putting in 10.679 gal at the station after work. Thinking 600+ miles might not be out of the realm of possibilities.

    IMG_0302.JPG
    Chazz8 likes this.
  20. mudmanrv

    mudmanrv Member

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    Curious - did your engine cut out at all - were you entirely EV at that point? I have run down till the orange indicator comes on - but had that 1 last bar before fueling - and I usually put in about 10.2xx in my tank.
    It holds 11.2 i think according to the manual - so that tells me I should of had about another 40 miles to go ...
    obviously that would not be good to run completely out - but - in a pinch - i could of went a little further.
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