Mileage brags - personal bests or unusual highs

Discussion in 'Prius c Fuel Economy' started by michael.sfo, Nov 8, 2018.

  1. michael.sfo

    michael.sfo New Member

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    Post your personal bests in this thread!

    My SF-San Jose morning commute was longer than usual today thanks to especially bad traffic on the freeway, and dropping off a carpool passenger a couple of miles away from the freeway in congested Mountain View, CA. But the Prius c likes this kind of traffic. My new personal record this morning, along with a picture of Boris Badenov before we started: IMG_5300.jpg
    IMG_5298.jpg
     
  2. skayaks

    skayaks Member

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    That's terrific mileage. I'm familiar with the area you are traversing and it's a wonder you can accomplish that with the traffic.
    Love to brag about the C's capabilities. Posted my car's best tank (with photo) in the old "Top 20" thread last year, but I'll brag about one part of that tank. I've noted here before that my Fuelly number is inflated by a weekly cross-Massachusetts trip on (mostly) back roads.
    Weather and traffic conditions were both close to perfect on Tuesday, July 4th, 2017 and I achieved my PR for that trip:
    92.0 mpg for the westbound leg; and 95.9 mpg for the 200 mile round-trip. (Both numbers from the display. FWIW, that full tank calculated mpg was 4% below the displayed mpg.)
     
    #2 skayaks, Nov 8, 2018
    Last edited: Nov 8, 2018
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  3. PriusCamper

    PriusCamper Senior Member

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    My personal best $1.11 per gallon of gas in 2002... And I see you're now down to $1.77 already... Not much longer till you break my record! ;-)
     
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  4. michael.sfo

    michael.sfo New Member

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    I just updated the computer's value for gas price last night when I tanked up; going forward my mileage shots will show the correct fuel cost (I paid $3.95/gal plus tax last night).
     
  5. PriusCamper

    PriusCamper Senior Member

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    I guess my record of $1.11 per gallon is much safer now!
     
  6. pdforever

    pdforever Junior Member

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    Now, I've put up this picture once before (in the newbie forum), but I figured I might as well put it up here.

    This is from near the end of a commute, from the start of January. It says "40.1 km/l", which is 94.3 mpg (US). I can usually get around 35 km/l on my way home. A few contributing factors:
    1. While it is cold, it's not super-cold. It's usually between 10 and 15 Celsius (50 to 60 F), so I don't need to turn on the heater.
    2. Most of the route is downhill. Not like a proper "I need to engage B-mode" downhill, but y'know, enough. I didn't even notice that it was downhill until I started driving a hybrid.
    3. Thanks to traffic, I rarely get to drive faster than 60 mph. Usually, I'm stuck puttering around at 40 mph or less.
    It was frustrating in a manual. In an automatic...? The challenge is keeping awake so I don't accidentally ram someone.
     

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  7. michael.sfo

    michael.sfo New Member

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    Update: it appears that when you are moving on electric power alone, the computer records this as 99.9 miles/gallon. This allows the computer to display a result when a short trip would otherwise have an undefined result (the denominator of the fraction would be 0). This also means that, in normal driving, the computer is over-estimating your mileage. When I pull into the gas station, my trip-meter often shows 52 to 54 MPG for that gas tank, but the actual mileage (calculated with the odometer and the fuel pump's readout) is generally 2 MPG less.
     
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  8. ztanos

    ztanos All-around Geek!

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    This is all true, but it also factors in that the computer knows specifically how much fuel has been burned, whereas the old tried and true, fill it to the click method can have slight inconsistencies which could be off by almost a half gallon, depending on the pump. It is always on the generous side, though, so I do agree that it's probably to make the car look good mentally to the driver who doesn't keep records. :D
     
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  9. sethhawkins99

    sethhawkins99 New Member

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    On my way home with my 2014 Prius C. IMG_20190124_162603.jpeg

    Pixel 3 XL ?
     
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  10. Steve Lees

    Steve Lees Junior Member

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    My personal best for a tank was 66.6 mpg. I was doing a 130 mile per day round trip commute to Baltimore at the time, so that was about 3.5 days of driving. The fairly level terrain helped. I have a shorter 54 milero7nd trip now, but is is much hillier, so I’ve been struggling to hit the high 50s.
     
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  11. CoolPrius

    CoolPrius Active Member

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  12. ztanos

    ztanos All-around Geek!

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    Not bad for such short trips. It's fun trying to beat your records, right?!
     
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  13. CoolPrius

    CoolPrius Active Member

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    Now that it's getting warmer I can cruise around without the climate control so the numbers are rising.
    priuscmpg.JPG
     
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  14. ztanos

    ztanos All-around Geek!

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    WHY IS THAT GUY CHECKING OUT BIG FOOT'S BUTT!!!???
     
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