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High EV mode utilizers, how much do you fill your gas tank?

Discussion in 'Gen 1 Prius Plug-in 2012-2015' started by iplug, Aug 18, 2014.

  1. iplug

    iplug Senior Member

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    So gasoline only weighs a little more than 6 pounds per gallon. But for those who commute mostly or entirely in EV mode, do you fill up with less than a full tank for a small gain in mileage efficiency?

    This topic was probably covered as it pertains to keeping the gasoline from going stale. But any hypermilers maintaining around a gallon or two for EV or fuel efficiency reasons?
     
  2. bisco

    bisco cookie crumbler

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    there was a thread on this awhile back. some guy claimed he was going to save a ton of bolts by only keeping a few gallons on board. i think some of the brighter people here pretty much disproved his theory.
     
  3. mrbigh

    mrbigh Prius Absolutum Dominium

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    $20.00 worth every 4 weeks
     
  4. bisco

    bisco cookie crumbler

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    cheapskate.
     
  5. iplug

    iplug Senior Member

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    GasBuddy says about $3.75/gallon near you, so a bit over 5 gallons at a time. Are you filling from near empty?
     
  6. GregP507

    GregP507 Senior Member

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    Removing the floor-mats might save as much. ;)
     
  7. GregP507

    GregP507 Senior Member

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    The weight of the car has less of an effect on hybrid mileage than in a conventional car. A measure of the energy spent accelerating the car, is returned through regeneration. By a rough calculation, the mileage penalty (due to extra weight) should be reduced by the inverse of the hybrid regenerative efficiency factor.
     
  8. mrbigh

    mrbigh Prius Absolutum Dominium

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    Yes, almost but I do not wait 'till the fuel gauge start blinking.
    The Pip IS my commuter vehicle and I drive it everywhere. I do recharge a minimum of 2 to 3 times a day.
     
    #8 mrbigh, Aug 19, 2014
    Last edited: Aug 19, 2014
  9. GregP507

    GregP507 Senior Member

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    I used to carry a small gas can just in case I ran out, but now, I'm counting on the residual charge in the battery to get me to the gas station.
     
  10. -Rozi-

    -Rozi- Member

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    You won't believe me, but changing to a PiP I started missing fuel-ups. Therefore, I refuel 20 litres (5 US gal) only unless when going for a long haul.
    Having all EV commute, this means approx two fuel-ups per month.

    I know, I am not saving any fuel. At the end of the month, I spend more: the more fuel-ups, the more sweets and drinks I buy at the gas station I otherwise would not stop to buy. :rolleyes:
     
    rogerv likes this.
  11. GregP507

    GregP507 Senior Member

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    And the extra weight-gain from the snacks will reduce your mileage. ;)
     
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