How does Prime's dash MPG compare to hand calculation ?

Discussion in 'Prime Fuel Economy & EV Range' started by Lemooron, Jan 6, 2017.

  1. Lemooron

    Lemooron Junior Member

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    Hi. Been diving a 2011 Prius for 5 years and am now looking at Prime Premium. On the 2011 the dash has consistently been 3 or more MPG higher than hand calculation. Just wondering if the Prime's is more accurate.
    Thanks
     
  2. Pizza Driver

    Pizza Driver Active Member

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    No, the Prime does not seem to be more accurate. For my last fill up I had 60 mpg from the pump, 63.5 according to the car. Previously I have seen the car give numbers that were 2-2.5 mpg better than actual numbers derived from fill-ups.
     
  3. Lemooron

    Lemooron Junior Member

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    Has anyone else checked the accuracy of the Prime's dash MPG numbers ?
     
  4. PRIMEkhan

    PRIMEkhan New Member

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    Prime has a range of 25 miles. Since I bought it before the year ended I have just been charging it and driving. Have not visited a gas station. With a 4 to 5 thousand rebate from the government and state Prime is a great buy. The ride is better than many luxury cars on the road. The cabin is quiet and I love the 15inch wheels. It is loaded with technology and the new features are amazing.
     
  5. dalcon95

    dalcon95 Senior Member

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    I haven't been able to calculate the actual mpg yet since I bought the car on December 3rd. Still have the original tank of gas from the dealership. Looks like I will find out sometime in the beginning of February, which will be over 2 months from when I bought it new. The car is saying right now that I have 171 mpg average with 160 miles until empty on the original tank of gas. I have driven 1375 on the odometer so far. Hopefully I won't forget how to put gas in a car. Heck, I haven't even touched the gas cap yet!! LOL

    Posted via the PriusChat mobile app.
     
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  6. eddd

    eddd New Member

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    I did a couple long stretches of driving mostly ~70-75 mph, and the MPG on the dash was higher (by about 5) than when I calculated based on my trip meter and the amount of gas used to fill the tank.
     
  7. CaliforniaPrius

    CaliforniaPrius Active Member

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    This is consistent with my calculation. ~3-5mpg difference.
     
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  8. Lee Jay

    Lee Jay Senior Member

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    And have you measured the gas pump for accuracy? Are you using 100% gasoline or E10?
     
  9. Andyprius1

    Andyprius1 Senior Member

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    You must have a Prime commute. Down hill both ways.
     
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  10. dalcon95

    dalcon95 Senior Member

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    I ended up filling up on February 26th 2017 with 199.9 mpg on the dash. Today, I still have that same tank of gas with over 10,000 miles on it. I am purposively using the gas this month so it won't go bad. I don't plan on putting any more gas in the tank until I see a need to go on a long trip. In about a years time, I have driven at 98% EV. Here is a video of my tripometer rolling over at 10,000 miles with 98% of EV showing on the dash.
     
  11. Andyprius1

    Andyprius1 Senior Member

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    Now I spotted the trick, “ 29 mph average “ are you using a treadmill?
     
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  12. dalcon95

    dalcon95 Senior Member

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    Nope. Just my trusty Prius Prime on pavement. It isn't idea for offroading. So I just stick to the roads.
     
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  13. Weasle543

    Weasle543 Member

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    ...
     

    Attached Files:

  14. Weasle543

    Weasle543 Member

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    Compared to my 16 Prius two that I traded in for the prime

    1518655802339.png

    Posted via the PriusChat mobile app.
     
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