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July Fuel Economy Stats

Discussion in 'Gen III 2010+ Prius Fuel Economy' started by Tideland Prius, Jul 4, 2010.

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  1. Tideland Prius

    Tideland Prius Moderator of the North Staff Member

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    Location:
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    Format

    Date: xx July 20xx
    Total Dist: km / mi
    Tank Dist: km / mi
    MFD: L/100km or mpg US
    Calc'd: L/100km or mpg US
    Fuel Added: litres or US gal
    Average Speed: km/h or mph

    Remarks:
    1 person likes this.
  2. alfon

    alfon Active Member

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    Location:
    seaside, oregon
    Your Vehicle Year:
    2010 Prius
    Model:
    III
    fill up: 070410

    283.9 miles

    5.576 gallons

    indicated:54.1 MPG

    calculated: 50.914 MPG

    Gasoline here in Oregon is alway 10% Ethanol ALL YEAR LONG.

    I use regular gas only. same pump, first click and I stop on slow speed so this is consistent. Gas is non - branded, cheapest place in Seaside, $2.859 / gallon.

    Tires are: Michelin Energy Saver / 195x15x65 with 44 PSI in all 4 (nitrogen Costco).

    We now have about 18,000 miles on those tires so they are well broken in.

    oil / 100 % synthetic Oil / Valvoline 0x20/ filled with only 4 quarts so not overfilled.

    My wife drove nearly 100 % of the time, and she does not drive for economy.

    alfon
  3. Dan bo

    Dan bo Prius Fan

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    Location:
    Canada, London
    Your Vehicle Year:
    2010 Prius
    Model:
    N/A
    Date: 06 July 2010
    Total Dist: 7995 km / 4967.8 mi
    Tank Dist: 806 km / 500 mi
    MFD: 4.2 L/100km or 55.87 mpg US
    Calc'd: 4.35 L/100km or 54.03 mpg US
    % diff MFD to Calc = 3.57%
    Fuel Added: 35.1 litres or 9.27 US gal

    Date: 15 July 2010
    Total Dist: 9005 km / 5595.4 mi
    Tank Dist: 1010 km / 627.6 mi ===NEW RECORD===
    MFD: 3.9 L/100km or 60.32 mpg US
    Calc'd: 4.09 L/100km or 57.47 mpg US
    % diff MFD to Calc = 4.87%
    Fuel Added: 41.332 litres or 10.92 US gal


    Remarks: (for both tanks) -drove in ECO mode ~ 95%, -all 4 tires @ 38psi cold, -AC on pretty much all the time in auto, temp set to cool cabin the adjusted to keep fan low. ~70% in town.
  4. Tideland Prius

    Tideland Prius Moderator of the North Staff Member

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    wow..1010km!! Nice!
  5. Dan bo

    Dan bo Prius Fan

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    Thanks Tideland! .. the wife was sweating a bit ..LOL .. but it was fun!!

    I've filled up enough now that I'm pretty comfortable with the idea that on my vehicle at least the last bar starts to flash with 10lts left. So depending on the FF I can estimate about 200kms max once the last bar starts to flash.

    I reset my B-trip once the last bar flashes and this time ran it 167kms and added 41.33 lts. I've been averaging 4.2lts calc so as long as my current ff is showing 3.9 to 4.1 I figure I can do almost 200.

    I can't recall who, but one of our fellow members posted a 700 mile, 1125kms tank which is wild.

    Dan
  6. Tideland Prius

    Tideland Prius Moderator of the North Staff Member

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    Same but I was too chicken to run it to 1000. I refuelled at 914km with 38 litres. Will try again before summer ends!

    There's a 700 tank thread in the Gen 2 forum somewhere (probably under the FE forum)...
  7. Tideland Prius

    Tideland Prius Moderator of the North Staff Member

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    Location:
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    Your Vehicle Year:
    2010 Prius
    Model:
    N/A
    Date: 6th July 2010
    Total Dist: 14885.2 km / 9303.3 mi
    Tank Dist: 503.5 km / 314.7 mi
    MFD: 4.7L/100km or 50.0 mpg US
    Calc'd: 4.99L/100km or 47.1 mpg US
    Fuel Added: 25.101 litres or 6.63 US gal
    Average Speed: 39km/h or 24mph

    Remarks: Highway driving at 70mph + city driving (hilly). E10 fuel used

    ---

    Date: 11th July 2010
    Total Dist: 15568.9 km / 9730.5mi
    Tank Dist: 683.7 km / 427.3 mi
    MFD: 4.7L/100km or 50.0 mpg US
    Calc'd: 4.95L/100km or 47.5 mpg US
    Fuel Added: 33.859 litres or 8.94 US gal
    Average Speed: 42km/h or 26mph

    Remarks: Highway driving at 70mph + city driving (hilly). E10 fuel used

    ---

    Date: 17th July 2010
    Total Dist: 15856.9 km / 9910.6 mi
    Tank Dist: 288.0 km / 180.0 mi
    MFD: 5.2L/100km or 45.2 mpg US
    Calc'd: 5.10L/100km or 46.1 mpg US
    Fuel Added: 14.685 litres or 3.88 US gal
    Average Speed: 24km/h or 15mph

    Remarks: city driving only with short trips (hilly). It's also the first time that the calculated is better than the MFD. E10 fuel used

    ---

    Date: 18th July 2010
    Total Dist: 16223.5 km / 10145.9 mi
    Tank Dist: 366.6 km / 229.1 mi
    MFD: 4.7L/100km or 50.0 mpg US
    Calc'd: 4.92L/100km or 47.8 mpg US
    Fuel Added: 18.051 litres or 4.77 US gal
    Average Speed: 90km/h or 56mph

    Remarks: Highway only through mountains (80-110km/h). E10 fuel used

    ---

    Date: 18th July 2010
    Total Dist: 16562.9 km / 10351.8 mi
    Tank Dist: 339.4 km / 212.1 mi
    MFD: 4.9L/100km or 48.0 mpg US
    Calc'd: 5.14L/100km or 45.8 mpg US
    Fuel Added: 17.461 litres or 4.61 US gal
    Average Speed: 82km/h or 51mph

    Remarks: Highway speeds through Rockies (80-100km/h). E10 fuel used
  8. Dan bo

    Dan bo Prius Fan

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    Through the Rockies ... lucky guy!!

    I'm headed out now to drive to Timmins in northern Ontario, will return through Michigan ~ 1800-2000km looking forward to the trip, but the Rockies ... much more fun :)

    Funny re your third tank and comments, I don't ever think I've seen the Calc better then the MFD?

    Hope you enjoy your trip.
  9. Tideland Prius

    Tideland Prius Moderator of the North Staff Member

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    If you ever have a chance to drive or hike through them, there's a lot to discover out here. You'll also discover how our cross-country highway is, umm, inadequate, particularly near Golden, BC.

    I did drive from Toronto (Oakville to be specific) to Vancouver back in 2008. Took the route along the north shore of Superior/Huron. Had a great time.

    Enjoy your trip!
  10. jdcollins5

    jdcollins5 Senior Member

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    Location:
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    Your Vehicle Year:
    2010 Prius
    Model:
    III
    Date: July 5, 2010
    Total Dist: 408 miles
    Tank Dist: 408 miles
    MFD: 52.7 mpg
    Calc'd: 48.6 mpg
    Fuel Added: 8.40 US gallons
    Average Speed: 39 mph

    Remarks: 7 days of 52 mile daily commute - weekend duty

    Date: July 20, 2010
    Total Dist: 408 miles
    Tank Dist: 408 miles
    MFD: 49.9 mpg
    Calc'd: 48.4 mpg
    Fuel Added: 8.44 US gallons
    Average Speed: 35 mph

    Remarks: One week vacation with lot of short trips around town

    Discrepency in displayed versus calculated mpg is due to the fact that I always round up to the next whole dollar after the pump's first auto stop. Sometimes I add almost a whole dollar and others just a few cents. My average error is about 3.3 mpg or 7%.
  11. Author

    Author New Member

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    Yesterday -

    432.1 Km with one passenger and luggage for two - four stops of more than 10 minutes.

    temp 29 degrees C - air conditioning set to auto 25 degrees C

    ~10% city driving - 90% secondary rural highways

    avg speed 49 km/hr (computer)

    tires 38 psi front - 36 psi rear

    Shell regular gas $1.058/L Canadian

    3.2 L/100 km computer (73.5 mpg US)

    3.4 L/100 km calc. (69.2 mpg US)
  12. tickmark40

    tickmark40 New Member

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    Location:
    Brownwood, TX
    Your Vehicle Year:
    2010 Prius
    Model:
    IV
    Date: 16July 2010
    Total Dist: km / 1948 mi
    Tank Dist: km / 423.7mi
    MFD: L/100km or 51.3 mpg US
    Calc'd: L/100km or 49.34 mpg US
    Fuel Added: litres or 8.588 US gal
    Average Speed: km/h or 37 mph


    Approx. 1/2 of tank was around town on short trips, 1/2 of tank
    was out of town trips up and down hill, temp above 90 and using A/C

    Date: 29 July 2010
    Total Dist: 2384 US miles
    Tank Dist: 435.8 mi
    MFD: 53.2mpg US
    Calc'd: 51.22 mpg US
    Fuel added: 8.509 US gal
    Average Speed: 54mph

    3/4 of miles on out of town trips, up and down hills, A/C used and temps in the 90s.
    Steady improvement in mpg with experience and breaking in the car.:D
  13. Dan bo

    Dan bo Prius Fan

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    Golden! oh yes "interesting" road from Field, BC. We were married out there in 97 and did that drive along with many others, but none quite as "fun" :eek: as the Golden drive. We have been fortunate to have driven and hiked a fair bit of the Rockies and the Coastal range, but have never driven all the way from Ontario, perhaps some day.

    Dan
  14. Dan bo

    Dan bo Prius Fan

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    Location:
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    Your Vehicle Year:
    2010 Prius
    Model:
    N/A
    Date: 22 July 2020
    Total Dist: 9533 km / 5923mi
    Tank Dist: 528km / 328mi
    MFD: 4.0L/100km
    Calc'd: 4.16L/100km or 56.57mpg US
    Fuel Added: 21.94litres or 5.8US gal
    Average Speed: 33km/h or 20mph

    Remarks: Top up before trip ... all short trips in town in eco with ac in auto

    ================================

    Date: 23 July 2010
    Total Dist: 10374km / 6446 mi
    Tank Dist: 841km / 522.6mi
    MFD: 4.2L/100km
    Calc'd: 4.53L/100km or 51.95mpg US
    Fuel Added: 35.5litres or 9.38US gal
    Average Speed: 79km/h or 49mph

    Remarks: four tires @ 38 psi, ac on auto, 2/3 in eco 1/3 in power, cc on ~ 1/2 the time, cruised when able at either 95kph (60mph) or 120kpm (75mph), a fair amount of construction along the way. About 50km of in town driving.

    ================================

    Date: 26 July 2010
    Total Dist: 111118km / 6908mi
    Tank Dist: 744km / 562.32mi
    MFD: 4.6L/100km
    Calc'd: 4.77L/100km or 49.29mpg US (poorest mileage recorded so far)
    Fuel Added: 35.5litres or 9.38US gal
    Average Speed: 87km/h or 54mph

    Remarks: Enjoyable drive from Timmins through Wawa to the Sue, not much traffic cruised 100-120km (62-75 mph). Some pretty good hills along the way. Ac in auto cc used little. About 100Km of in town driving.

    =================================

    Date: 27 July 2010
    Total Dist: 11983km / 7445mi
    Tank Dist: 865km / 537.51mi
    MFD: 4.2L/100km
    Calc'd: 4.1L/100km or 57.3mpg US (First time calc was better then MFD)
    Fuel Added: 35.5litres or 9.38US gal Same as last fill-up :eek:
    Average Speed: 77km/h or 45mph

    Remarks: Beautiful drive along the north-east coast of Lake Michigan, will have to return up there when we have more time to explore.

    ==================================

    Total trip distance was about 2600km or 1600mi. Fuel wise average was 4.47lt/100km calc or 52.85 mpg US. All in all an enjoyable drive and was quite happy with how the car performed.

    Link to the route we drove:
    Trip to Timmins - Google Maps

    Not my real Plate# but here is what the front end looked like after we got home. It did clean up quite nicely and easily though. :rockon:

    Attached Files:

  15. mbartley

    mbartley Junior Member

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    Location:
    LA County, CA
    Your Vehicle Year:
    2010 Prius
    Model:
    III
    July totals:

    Distance: 2194 statute miles
    Fuel: 42.6 US gallons (5 trips to the gas station)
    Calculated MPG: 51.5 MPG

    Best tank: 55.1 MPG
    Worst tank: 49.8 MPG

    The car's MFD sometimes exactly agreed with my per-tank calculations. Once it overestimated by 10%. I think I usually see the typical 5% overestimation.
  16. Tideland Prius

    Tideland Prius Moderator of the North Staff Member

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    Location:
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    Your Vehicle Year:
    2010 Prius
    Model:
    N/A
    Date: 24th June - 3rd July 2011
    Total Dist: 30317 km / 18948 mi
    Tank Dist: 652.0 km / 407.5 mi
    MFD: 4.8 L/100km / 49 mpg US
    Calc'd: 5.11 L/100km / 46.1 mpg US
    Average Speed: 35km/h / 22mph
    Fuel Added: 33.289 litres / 8.79 US gal

    Remarks: Highway driving plus short trips in normal mode
  17. Tideland Prius

    Tideland Prius Moderator of the North Staff Member

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    Location:
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    Model:
    N/A
    Date: 3rd July - 14th July 2011
    Total Dist: 30708 km / 19193mi
    Tank Dist: 396.0 km / 247.5 mi
    MFD: 5.1 L/100km / 46.1 mpg US
    Calc'd: 5.32 L/100km / 44.2 mpg US
    Average Speed: 23km/h / 14mph
    Fuel Added: 21.070 litres / 5.56 US gal

    Remarks: Plenty of short trips

    ------

    Date: 14th July - 15th July 2011
    Total Dist: 31072 km / 19420mi
    Tank Dist: 364.4 km / 227.7 mi
    MFD: 4.9 L/100km / 48. mpg US
    Calc'd: 5.17 L/100km / 45.5 mpg US
    Average Speed: 87km/h / 54mph
    Fuel Added: 18.83 litres / 4.97 US gal

    Remarks: Highway speeds near 70mph and uphill through the mountains with a full load of luggage + 4 steel rims. This tank is also running on midgrade fuel.

    -----

    Date: 15th July - 16th July 2011
    Total Dist: 31863 km / 19914mi
    Tank Dist: 787.7 km / 492.1 mi
    MFD: 4.5 L/100km / 52.3 mpg US
    Calc'd: 4.71 L/100km / 49.9 mpg US
    Average Speed: 90km/h / 56mph
    Fuel Added: 37.085 litres / 9.80 US gal

    Remarks: Through the mountains with a full load of luggage + 4 steel rims. Midgrade fuel used.
  18. sipnfuel

    sipnfuel New Member

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    Location:
    So. Cal.
    Your Vehicle Year:
    2010 Prius
    Model:
    II
    June 28 - July 22
    Fuel Added: 8.100 gallons (US)
    Tank Dist: 474 miles (US)
    Calc'd: 58.5 mpg (US)
    1 person likes this.