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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 1900 1251027.64 1612603.50 32.61 42.09 77.6 160.71 68.66 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 325285.57 447173.61 72.7 126.20 63.51 34.40
Vegas Volts 14 127264.56 171087.59 74.4 130.47 63.85 33.42
St. Louis Volt Owners 19 192195.36 255207.30 75.3 141.70 65.98 34.99
Indiana Volt Owners 20 119129.03 175664.86 67.8 110.81 61.29 35.66
Metro Detroit Volt's 76 840956.11 1177820.99 71.4 126.60 64.20 36.21
North Texas 41 412637.41 507317.55 81.3 191.67 71.62 35.77
Guelph Volt Owners 9 115082.20 145756.43 79.0 166.90 69.05 35.12
Southern CA Volts!!! 114 1048035.56 1327976.56 78.9 164.94 68.73 34.77
DC Metro Volts 60 563564.50 703984.67 80.1 182.32 70.96 36.37
Greater Chicago area 64 580602.65 804913.61 72.1 123.32 63.03 34.37
Maryland Volt Owners 40 348126.23 415198.06 83.8 218.38 73.56 35.28
Houston Volts 35 362866.39 564376.89 64.3 111.05 62.82 39.65
Qweebec 19 123297.69 161574.45 76.3 125.28 61.77 29.68
Arizona Volts 39 349802.32 485400.59 72.1 127.48 64.13 35.61
Florida Volt Owners 95 780561.21 1033429.06 75.5 147.49 67.11 36.09
Washington State Volts 49 411027.34 554007.83 74.2 135.02 65.00 34.85
NY Metropolitan Volts 31 388762.73 493528.06 78.8 166.40 69.06 35.32
SF Bay Area 97 813908.33 1070612.79 76.0 150.35 67.45 36.05
Atlanta Metro Volts 49 475963.76 616129.43 77.3 159.95 68.69 36.39
Pennsylvania Volts 47 416004.50 585311.53 71.1 119.58 62.48 34.59
New England Volts 56 495824.71 674040.45 73.6 128.77 63.79 34.05
Hawaii Volt Owners 8 67695.85 75498.84 89.7 355.58 80.30 36.75
Triangle Volts 25 256210.54 342531.05 74.8 144.72 66.88 36.47
Ontario Volts 49 524914.23 727047.27 72.2 119.31 61.94 33.17
Ottawa Volts 12 137224.03 221991.55 61.8 84.47 54.10 32.25
NY State Volts 48 452028.84 604862.53 74.7 139.63 65.80 35.28
Michigan Capital City 22 249948.23 337764.32 74.0 134.66 65.01 35.01
South Texas Volts 24 268574.89 343166.52 78.3 167.00 69.43 36.30
AZ Volts 35 285073.83 394541.72 72.3 126.63 63.83 35.13
West TN Volts 11 101429.86 130031.39 78.0 157.09 67.78 34.55
Missouri 20 186460.19 261852.79 71.2 127.53 64.52 36.72
Minnesota Volt Owners 46 393048.15 532443.47 73.8 125.63 62.90 32.89
IOWA volts 18 116675.11 177686.95 65.7 95.40 57.00 32.76
Volunteer Volts 14 159195.08 202002.38 78.8 168.82 69.46 35.78
Nebraska Volts 9 99958.31 129115.87 77.4 145.84 65.87 32.93
Colorado Volts 35 264862.25 326663.80 81.1 175.22 69.32 33.15
Cold Climate Volts 168 1644983.52 2244635.54 73.3 127.86 63.69 34.16
Ohio Volts 54 471459.59 659487.75 71.5 129.60 64.92 36.95
Jersey Shore Volts 13 118073.79 177445.96 66.5 109.40 61.37 36.60
Georgia Volts 40 321006.06 410611.09 78.2 162.28 68.64 35.41
GE EVs 11 122274.13 189769.77 64.4 95.37 57.43 33.92
Richard Rand 3 33259.36 35032.25 94.9 654.51 85.21 33.12
North Carolina Volts 37 357339.40 471158.34 75.8 149.87 67.44 36.21
Lupient Chev Volt Owners MN 20 195264.71 262067.96 74.5 126.49 62.83 32.24
Granite State Volts 11 110251.22 148528.61 74.2 143.49 66.89 36.98
Alabama Volts 10 107105.80 140323.41 76.3 153.88 68.00 36.43
Powertrain Volt Owners 16 145023.08 213661.78 67.9 113.51 62.08 36.46
Northern CA Volts 45 409725.16 544368.24 75.3 144.38 66.58 35.71
Oregon Volts! 24 205067.11 280884.10 73.0 132.54 64.96 35.78
KC Metro 7 53980.42 70500.56 76.6 203.02 75.99 47.57
sf 9 67211.42 85457.18 78.6 156.33 67.32 33.38
ISJ 1 3538.12 3832.34 92.3 438.44 81.92 33.66
Central Illinois Volts 23 202524.84 302525.20 66.9 108.56 60.94 35.88
Arkansas Volts 11 78722.33 152151.85 51.7 78.83 54.80 38.05
Google+ Volt Group 39 417567.06 526705.26 79.3 167.04 68.91 34.61
Ann Arbor Volts 15 140868.67 223688.92 63.0 99.44 59.42 36.82
Connecticut Volts 25 284411.26 383276.42 74.2 130.40 63.91 33.64
CANADIAN VOLT 96 798984.19 1062721.30 75.2 128.17 62.95 31.81
Maine Volts 5 40524.17 66719.02 60.7 88.57 56.11 34.78
Bloomfield Township Volts 10 126434.90 162588.22 77.8 156.38 67.77 34.77
Jackson Michigan Volts 1 13998.12 35406.15 39.5 60.75 48.28 36.73
Nothern Jersey Volts 16 153372.25 193488.33 79.3 177.22 70.59 36.74
San Antonio Volt 9 86972.89 105752.22 82.2 199.87 72.22 35.49
StCharlesMo 3 21068.45 24099.23 87.4 276.51 76.82 34.77
Long Island Volts 18 212698.81 284107.41 74.9 140.97 66.03 35.43
Utah Volts! 8 57161.11 74792.61 76.4 151.19 67.42 35.64
Toronto Volts 23 206568.91 286039.84 72.2 121.84 62.61 33.85
Facebook Volt Owners 102 1131392.76 1467480.54 77.1 156.72 68.16 35.89
Space Coast Volts 9 88677.95 139739.47 63.5 104.52 61.01 38.19
CMSFleet 1 12363.59 27728.10 44.6 62.80 48.27 34.80
SC owners 11 96904.86 115277.48 84.1 226.73 74.35 36.14
hawaii 1 15602.03 16857.08 92.6 607.72 86.22 45.25
Orange County, CA Volts 24 205706.30 232567.37 88.5 298.21 77.74 34.44
Cincinnati Volts 18 154605.53 208481.49 74.2 143.63 66.95 37.12
Quebec volt 53 380358.00 512601.32 74.2 120.66 61.48 31.13
Crystal Red Volts 20 150197.41 211427.08 71.0 122.41 63.26 35.45
Oklahoma 3 21291.72 35309.54 60.3 88.87 56.38 35.28
Central Orange County, CA 5 32483.23 36862.67 88.1 293.30 77.61 34.84
Austin Volts 22 256764.11 348095.70 73.8 137.00 65.66 35.95
Virginia Volt Owners 31 271842.07 378727.23 71.8 128.99 64.64 36.40
Huntington Beach, CA Volts 6 68919.97 74036.85 93.1 539.46 84.29 37.28
MountaineerVolts 10 62544.96 89119.14 70.2 104.16 58.32 31.06
Columbia Volts 4 47015.06 58469.51 80.4 195.05 72.61 38.21
San Diego Volts 21 165757.11 225194.06 73.6 130.08 64.09 34.33
GulfVolt1 and GulfVolt2 2 38896.47 58475.03 66.5 115.89 63.36 38.80
Richard 1 6758.42 9083.19 74.4 105.66 57.26 27.04
LG-DG 2 17894.66 30274.26 59.1 90.49 57.45 37.00
Illinois Volts 33 310053.01 453494.12 68.4 107.43 60.02 33.98
Monterey Bay Area, CA VOLTS 2 17917.94 21586.83 83.0 203.08 72.20 34.52
Solar and Wind Charged Volts 64 693317.43 891911.50 77.7 161.43 68.71 35.94
Frederick MD Volts 4 28190.41 35408.84 79.6 165.58 68.49 33.75
Columbus Ohio Volts 13 120910.56 205713.46 58.8 93.28 58.68 38.45
Dayton Ohio Volts 7 34014.11 59144.63 57.5 95.26 59.95 40.47
Chicago North Shore 7 58414.27 68596.79 85.2 210.18 71.87 31.20
Sweet 1 1064.92 1296.85 82.1 170.30 68.00 30.46
Santa Barbara County Volts 4 33487.97 41818.03 80.1 173.16 69.51 34.49
6 Volts Over Texas 6 95067.81 122386.69 77.7 160.72 68.61 35.88
Take that OPEC !!! 15 179139.19 236984.20 75.6 130.29 63.28 31.80
Amylin Volts 5 42499.01 68630.17 61.9 106.45 62.30 40.53
Idaho Volts 3 18339.93 19151.34 95.8 607.05 83.72 25.72
2013 Model Year Volts 184 954726.76 1270677.59 75.1 132.91 64.09 33.05
Hispanic Volt Owners 4 28406.22 43030.68 66.0 110.72 61.99 37.63
+Irvine, CA RESIDENTS group+ 3 38465.60 43197.65 89.0 302.71 77.65 33.16
Army VOLTS 3 36320.53 60709.33 59.8 87.33 55.92 35.08
Delaware Volt Owners 1 399.07 428.17 93.2 375.64 78.84 25.53
Santa Clarita Volts 6 50182.36 68124.73 73.7 121.49 61.91 32.00
Savannah Volts 1 6109.39 7482.14 81.7 195.58 71.98 35.88
2012 Volt Owners Group 72 752351.60 979362.92 76.8 153.90 67.76 35.67
2011 Volt Owners Group 25 419175.77 690118.52 60.7 92.63 57.72 36.37
IT Professionals 24 229539.01 323040.16 71.1 122.71 63.33 35.52
JAX Volts! 1 893.00 1205.79 74.1 130.06 63.89 33.74
Miami Volts 2 7234.92 8184.88 88.4 312.61 78.72 36.28
Easthampton Volts 4 33091.75 41950.89 78.9 172.45 70.02 36.42
AB Volt Owners 3 12361.71 14603.44 84.6 164.23 65.83 25.21
DFW Volts 15 127202.19 164202.04 77.5 156.76 67.99 35.32
Veterans With Volts 13 117640.57 159113.83 73.9 133.60 64.79 34.82
Intel Volts 6 41773.21 59723.05 69.9 113.74 61.30 34.18
CVCV (Central Valley California Volts) 1 3224.43 6854.34 47.0 69.76 51.56 36.94
Apple Volts 11 92811.86 116406.05 79.7 170.29 69.22 34.52
South Jersey Volts 4 46080.27 49693.66 92.7 467.14 82.57 33.97
Vancouver Island BC 1 6662.98 7705.82 86.5 240.30 74.30 32.52
Michigan Volts 26 230244.70 335634.06 68.6 109.81 60.67 34.48
League City TX Volts 1 6568.65 7828.20 83.9 238.58 75.68 38.39
GM Volt Drivers 11 89192.84 105618.34 84.4 207.12 71.90 32.21
Greenville Volts 2 15117.46 20724.12 72.9 133.29 65.16 36.06
Palos Verdes Volts 2 13664.30 17436.51 78.4 158.10 67.79 34.20
BC Volt Owners 6 39167.59 56705.75 69.1 107.24 59.70 33.17
Albuquerque Volts 1 2996.78 3262.96 91.8 373.23 79.66 30.45
Seattle Area Volt Owners 6 27337.68 39936.27 68.5 102.11 58.30 32.21
Central Mass Volts 3 3893.19 4370.14 89.1 258.17 74.33 28.18
Contra Costa Volts 1 2013.35 2191.59 91.9 433.43 82.05 35.25
Simi Valley Volts 2 18410.40 18925.02 97.3 999.00 88.48 32.33
Mississippi Volt Group! 1 16239.58 18284.22 88.8 323.92 79.13 36.22
120V Charged Volts 13 103461.40 160862.76 64.3 100.09 59.15 35.72
Macdaddy 2 18321.12 21551.24 85.0 212.66 72.24 31.87
White Diamond Volts 2 15869.29 29029.48 54.7 83.88 56.18 38.03
Jersey Devils 1 1915.47 2415.37 79.3 165.44 68.63 34.24
Rose-Hulman Volts 1 326.85 524.06 62.4 93.22 57.37 35.08