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Volt Stats interfaces with OnStar to collect data about the performance of Chevy Volts driving in the real world.

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MPG: Simply total miles driven divided by total gallons of gas burned. This is how the Volt reports MPG, although since the electricity is counted as "free" it doesn't give a true picture of the energy used. On the other hand, this is literally accurate. :)

MPGe: Counts all electric miles driven as 93 "MPGe". See this wikipedia page for the gory details, but in short, 33.7 kw*hrs of energy has been determined to be equal to one gallon of gasoline, and the Volt is rated at a combined 93 MPGe (0.36 kw*hrs/mi) by the EPA. This gives a better account of the true energy usage of the vehicle, in a number that's easily comparable to traditional cars. However, this is just an estimation - I cannot currently read raw kw*hrs from Onstar, so actual energy usage could be better or worse than this number. Hopefully we can get a real MPGe calculation in the near future. The formula is: Total Miles / (Gallons Burned + (EV Miles / 93))

MPGCS: Charge-Sustaining MPG, or what the Volt is getting on gas only.

Graph Options

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Show Data By Year:

Raw Data

Month Vehicles EV Miles Total Miles EV MPVDD Total MPVDD EV % MPG MPGe MPGCS
April 2011 1 243.02 729.26 27.22 84.68 33.3 61.13 50.14 40.76
May 2011 15 7990.09 10170.89 31.09 39.66 78.6 172.89 70.27 37.07
June 2011 38 23078.91 30937.43 31.54 41.26 74.6 143.19 66.64 36.37
July 2011 62 37181.09 56603.22 30.44 45.97 65.7 109.11 61.62 37.44
August 2011 72 51824.44 66519.99 30.24 38.48 77.9 169.39 70.02 37.42
September 2011 108 63707.23 86225.95 30.19 40.15 73.9 141.22 66.55 36.88
October 2011 156 98080.08 135606.99 29.59 40.45 72.3 129.44 64.51 35.82
November 2011 233 142834.31 199628.18 29.02 40.54 71.6 123.82 63.41 35.23
December 2011 319 198702.93 286385.96 27.97 39.95 69.4 108.13 59.85 33.11
January 2012 419 256973.03 345229.47 27.53 36.84 74.4 121.97 61.72 31.18
February 2012 505 329387.56 445423.94 29.18 39.32 73.9 114.90 60.04 29.93
March 2012 725 476091.67 625084.13 31.33 41.02 76.2 148.15 66.94 35.31
April 2012 915 635280.86 832933.70 31.25 40.87 76.3 150.12 67.28 35.62
May 2012 1081 825151.86 1082064.88 32.17 41.86 76.3 150.63 67.39 35.76
June 2012 1216 896663.17 1193020.84 31.90 42.34 75.2 144.98 66.76 36.01
July 2012 1411 1001289.40 1371137.49 31.39 42.87 73.0 131.40 64.67 35.44
August 2012 1611 1233169.05 1638233.13 31.39 42.83 75.3 142.08 66.08 35.13
September 2012 1830 1355004.01 1804265.96 31.47 42.31 75.1 111.59 58.70 27.79
October 2012 1905 629168.08 834859.27 32.11 43.26 75.4 139.85 65.56 34.46
November 2012 1017 209662.82 281564.44 30.52 40.80 74.5 134.96 64.87 34.46
December 2012 1332 854775.21 1199051.62 28.82 40.40 71.3 115.95 61.39 33.29
January 2013 1592 1023270.90 1391012.18 27.83 38.61 73.6 114.70 60.14 30.32
February 2013 1594 980712.17 1303504.00 28.98 38.48 75.2 126.22 62.45 31.26
March 2013 1758 1279246.29 1701573.41 30.10 40.14 75.2 135.96 64.77 33.74
April 2013 1900 1339834.65 1726221.99 31.79 40.81 77.6 160.31 68.57 35.88
May 2013 1886 1126711.87 1442590.02 32.71 42.03 78.1 164.57 69.09 36.03

Daily Driving Histogram

Blue Bars Represent:


This histogram charts the percentage of days that a Volt has driven a given number of miles. The green bars represent EV-only usage, and there are multiple options for the blue bars:

  • Total Mileage When Gas Used: If this is selected, the blue bars will represent the total distance driven when any gas was used. For example, if you drove 50 miles, 40 of which were EV powered, you would have a green tick at 40 and a blue tick at 50 in this mode.

  • CS-Only Mileage: In this mode, the blue bars will represent the number of miles driven in charge sustaining mode only. For our 50 miles/40 EV example, you would get a green tick at 40 and a blue tick at 10 in this mode.

  • Nothing - Show EV Only: Obviously, will clear the blue bars and only show EV usage.

In any mode, a day without gas usage will not get a blue tick. A vehicle's "day" is determined by the time zone of the zip code entered for the car. If the car doesn't have a zip code, central time will be used.

To join a group, Login and go to the Group Management area!

Group Name Members EV Miles Total Miles EV% MPG MPGe MPGCS
Wisconsin Volt Owners 40 323239.23 444468.74 72.7 126.04 63.48 34.38
Vegas Volts 14 126685.60 170431.66 74.3 130.25 63.82 33.43
St. Louis Volt Owners 19 191128.02 253941.85 75.3 141.41 65.94 34.98
Indiana Volt Owners 20 118650.50 175008.76 67.8 110.71 61.26 35.65
Metro Detroit Volt's 76 837047.40 1172902.99 71.4 126.46 64.18 36.21
North Texas 41 410722.80 505049.35 81.3 191.48 71.60 35.76
Guelph Volt Owners 9 114443.11 144692.14 79.1 167.87 69.15 35.09
Southern CA Volts!!! 114 1043273.89 1322252.76 78.9 164.85 68.73 34.78
DC Metro Volts 60 561602.25 701928.65 80.0 181.89 70.92 36.36
Greater Chicago area 64 578029.33 801182.14 72.1 123.33 63.03 34.35
Maryland Volt Owners 40 346232.37 413101.55 83.8 217.97 73.53 35.28
Houston Volts 35 360092.26 559498.54 64.4 111.32 62.88 39.67
Qweebec 19 122468.84 160665.27 76.2 124.77 61.69 29.66
Arizona Volts 39 348080.92 483194.14 72.0 127.42 64.13 35.63
Florida Volt Owners 95 777100.49 1029079.34 75.5 147.39 67.09 36.09
Washington State Volts 49 408149.00 550648.39 74.1 134.64 64.95 34.84
NY Metropolitan Volts 31 387331.93 491614.22 78.8 166.58 69.08 35.33
SF Bay Area 97 810233.05 1066186.19 76.0 150.18 67.43 36.05
Atlanta Metro Volts 49 473653.09 612916.35 77.3 160.09 68.70 36.37
Pennsylvania Volts 47 412848.16 581153.46 71.0 119.41 62.45 34.58
New England Volts 56 492724.02 669483.66 73.6 128.91 63.81 34.04
Hawaii Volt Owners 8 67406.69 75200.69 89.6 354.75 80.28 36.77
Triangle Volts 25 255018.33 340916.63 74.8 144.69 66.87 36.46
Ontario Volts 49 522209.67 723430.26 72.2 119.20 61.92 33.16
Ottawa Volts 12 136678.08 221445.60 61.7 84.26 54.04 32.26
NY State Volts 48 449806.83 601372.03 74.8 139.91 65.83 35.26
Michigan Capital City 22 248878.14 336212.47 74.0 134.70 65.01 34.99
South Texas Volts 24 266643.17 339595.73 78.5 168.87 69.62 36.28
AZ Volts 34 283535.20 391960.52 72.3 127.11 63.92 35.16
West TN Volts 11 100559.60 129097.78 77.9 156.27 67.68 34.55
Missouri 20 185704.36 261068.43 71.1 127.20 64.47 36.72
Minnesota Volt Owners 46 390736.96 529482.91 73.8 125.44 62.87 32.87
IOWA volts 18 115743.94 175753.07 65.9 95.97 57.14 32.77
Volunteer Volts 14 158123.24 200606.44 78.8 168.85 69.45 35.76
Nebraska Volts 9 99282.62 128152.85 77.5 145.93 65.86 32.88
Colorado Volts 35 263123.46 324608.72 81.1 174.92 69.29 33.13
Cold Climate Volts 168 1635249.39 2229969.00 73.3 128.01 63.71 34.14
Ohio Volts 54 468900.14 656159.83 71.5 129.44 64.89 36.94
Jersey Shore Volts 13 117864.31 177148.38 66.5 109.37 61.36 36.60
Georgia Volts 40 319397.29 408554.55 78.2 162.29 68.64 35.42
GE EVs 11 121618.71 189036.44 64.3 95.13 57.37 33.93
Richard Rand 3 33158.35 34931.24 94.9 652.98 85.19 33.14
North Carolina Volts 37 355635.59 468531.19 75.9 150.18 67.47 36.19
Lupient Chev Volt Owners MN 20 194343.38 260898.90 74.5 126.30 62.78 32.22
Granite State Volts 11 109790.28 147985.17 74.2 143.27 66.86 36.98
Alabama Volts 10 106675.98 139576.34 76.4 154.44 68.06 36.40
Powertrain Volt Owners 16 144494.35 212683.45 67.9 113.78 62.14 36.48
Northern CA Volts 45 408382.03 542799.99 75.2 144.20 66.56 35.71
Oregon Volts! 24 204130.92 279678.30 73.0 132.45 64.94 35.78
KC Metro 7 53774.18 69880.32 77.0 208.15 76.46 47.97
sf 9 66897.25 85124.53 78.6 155.88 67.27 33.38
ISJ 1 3538.12 3832.34 92.3 438.44 81.92 33.66
Central Illinois Volts 23 201393.27 300791.07 67.0 108.54 60.93 35.87
Arkansas Volts 11 78220.16 150764.18 51.9 79.08 54.87 38.05
Google+ Volt Group 39 415315.21 523951.42 79.3 166.90 68.90 34.61
Ann Arbor Volts 15 140048.96 222571.11 62.9 99.28 59.39 36.81
Connecticut Volts 25 282725.50 381155.43 74.2 130.23 63.88 33.63
CANADIAN VOLT 96 793065.40 1055542.22 75.1 127.84 62.89 31.79
Maine Volts 5 40260.25 66381.57 60.6 88.36 56.06 34.77
Bloomfield Township Volts 10 126007.08 162160.41 77.7 155.97 67.72 34.77
Jackson Michigan Volts 1 13925.67 35239.43 39.5 60.71 48.26 36.72
Nothern Jersey Volts 16 152834.22 192940.16 79.2 176.76 70.55 36.74
San Antonio Volt 9 86538.70 105258.37 82.2 199.62 72.20 35.50
StCharlesMo 3 20872.62 23868.56 87.4 276.71 76.82 34.73
Long Island Volts 18 211766.89 283021.00 74.8 140.76 66.01 35.44
Utah Volts! 8 56734.71 74167.17 76.5 151.39 67.43 35.58
Toronto Volts 23 205527.97 284671.20 72.2 121.73 62.59 33.84
Facebook Volt Owners 100 1109170.17 1433149.64 77.4 158.27 68.30 35.78
Space Coast Volts 9 88228.92 139024.82 63.5 104.51 61.00 38.18
CMSFleet 1 12363.59 27728.10 44.6 62.80 48.27 34.80
SC owners 11 96280.04 114578.64 84.0 226.28 74.32 36.14
hawaii 1 15527.40 16782.46 92.5 605.03 86.20 45.25
Orange County, CA Volts 24 204665.07 231373.67 88.5 298.24 77.73 34.43
Cincinnati Volts 18 153806.93 207412.13 74.2 143.62 66.95 37.12
Quebec volt 53 376878.69 508502.95 74.1 120.16 61.38 31.10
Crystal Red Volts 20 149199.30 210164.70 71.0 122.15 63.21 35.43
Oklahoma 3 21077.81 35059.44 60.1 88.43 56.26 35.26
Central Orange County, CA 5 32191.73 36549.37 88.1 291.91 77.54 34.80
Austin Volts 22 255850.19 347008.94 73.7 136.84 65.64 35.95
Virginia Volt Owners 31 270101.76 376464.20 71.7 128.82 64.61 36.39
Huntington Beach, CA Volts 6 68589.02 73662.21 93.1 541.14 84.32 37.27
MountaineerVolts 9 52247.22 76670.38 68.1 96.62 56.57 30.78
Columbia Volts 4 46853.35 58244.94 80.4 195.47 72.65 38.23
San Diego Volts 21 164578.49 223609.57 73.6 130.05 64.09 34.33
GulfVolt1 and GulfVolt2 2 38724.42 58302.99 66.4 115.55 63.31 38.80
Richard 1 6661.45 8986.22 74.1 104.53 57.02 27.04
LG-DG 2 17681.02 29898.03 59.1 90.46 57.43 36.96
Illinois Volts 33 307844.70 450530.62 68.3 107.23 59.98 33.96
Monterey Bay Area, CA VOLTS 2 17837.49 21504.95 82.9 202.39 72.15 34.52
Solar and Wind Charged Volts 64 689572.82 887008.49 77.7 161.43 68.71 35.93
Frederick MD Volts 4 28190.41 35408.84 79.6 165.58 68.49 33.75
Columbus Ohio Volts 13 120098.68 204469.63 58.7 93.12 58.64 38.43
Dayton Ohio Volts 7 33681.63 58684.20 57.4 95.02 59.89 40.48
Chicago North Shore 7 58036.79 68163.18 85.1 209.74 71.82 31.16
Sweet 1 1064.92 1296.85 82.1 170.30 68.00 30.46
Santa Barbara County Volts 4 33252.10 41582.16 80.0 172.19 69.41 34.49
6 Volts Over Texas 6 94863.41 122150.43 77.7 160.58 68.60 35.87
Take that OPEC !!! 15 178040.62 235502.76 75.6 130.29 63.27 31.79
Amylin Volts 5 42350.41 68374.30 61.9 106.54 62.32 40.55
Idaho Volts 3 18075.57 18872.01 95.8 605.17 83.67 25.54
2013 Model Year Volts 183 940609.92 1251666.31 75.1 132.77 64.05 33.00
Hispanic Volt Owners 4 28239.52 42810.20 66.0 110.53 61.96 37.62
+Irvine, CA RESIDENTS group+ 3 38419.62 43151.67 89.0 302.39 77.64 33.16
Army VOLTS 3 36253.30 60642.11 59.8 87.23 55.89 35.08
Delaware Volt Owners 1 399.07 428.17 93.2 375.64 78.84 25.53
Santa Clarita Volts 6 49907.46 67774.13 73.6 121.43 61.91 32.01
Savannah Volts 1 6050.53 7412.59 81.6 195.11 71.93 35.85
2012 Volt Owners Group 72 747280.31 973402.42 76.8 153.49 67.71 35.66
2011 Volt Owners Group 24 378023.36 625171.89 60.5 92.26 57.67 36.47
IT Professionals 24 228066.19 321302.91 71.0 122.38 63.28 35.51
JAX Volts! 1 860.07 1172.86 73.3 126.51 63.34 33.74
Miami Volts 2 7185.39 8135.36 88.3 310.72 78.65 36.28
Easthampton Volts 4 32850.41 41704.28 78.8 171.50 69.93 36.41
AB Volt Owners 3 12119.93 14361.66 84.4 161.51 65.51 25.21
DFW Volts 15 126044.16 162985.89 77.3 155.81 67.87 35.31
Veterans With Volts 13 116953.83 158338.55 73.9 133.22 64.73 34.82
Intel Volts 6 41598.58 59521.63 69.9 113.50 61.25 34.18
CVCV (Central Valley California Volts) 1 3202.57 6832.47 46.9 69.54 51.49 36.94
Apple Volts 11 92178.02 115662.62 79.7 170.00 69.20 34.52
South Jersey Volts 4 45909.56 49522.95 92.7 465.53 82.53 33.97
Vancouver Island BC 1 6593.91 7636.75 86.3 238.14 74.16 32.52
Michigan Volts 26 228340.45 332762.53 68.6 109.83 60.67 34.47
League City TX Volts 1 6473.48 7696.15 84.1 241.42 75.83 38.35
GM Volt Drivers 11 88384.73 104413.55 84.6 209.65 72.09 32.18
Greenville Volts 2 15033.42 20640.08 72.8 132.75 65.08 36.06
Palos Verdes Volts 2 13549.26 17318.54 78.2 157.33 67.71 34.24
BC Volt Owners 6 38843.76 56380.56 68.9 106.64 59.57 33.17
Albuquerque Volts 1 2960.20 3223.01 91.8 371.64 79.58 30.30
Seattle Area Volt Owners 6 26870.37 39269.89 68.4 101.69 58.17 32.11
Central Mass Volts 3 3700.30 4123.89 89.7 265.15 74.52 27.23
Contra Costa Volts 1 1973.85 2152.08 91.7 425.61 81.88 35.25
Simi Valley Volts 2 18204.91 18719.52 97.3 999.00 88.44 32.33
Mississippi Volt Group! 1 16198.59 18243.23 88.8 323.20 79.10 36.22
120V Charged Volts 12 63291.07 97228.25 65.1 103.14 59.90 36.00
Macdaddy 2 18141.72 21371.11 84.9 210.96 72.11 31.88
White Diamond Volts 2 15815.66 28950.40 54.6 83.80 56.16 38.02
Jersey Devils 1 1867.28 2367.19 78.9 162.14 68.26 34.24
Rose-Hulman Volts 1 235.64 426.52 55.2 78.16 53.36 34.98