| End date | Miles | Gallons | MPG | |
| September 19, 2011 | 483.3 | 7.4 | 65.4 | |
| September 3, 2011 | 607 | 9.2 | 66.3 | |
| August 16, 2011 | 715 | 10.4 | 68.9 | |
| July 27, 2011 | 711.1 | 10.5 | 67.7 | |
| July 3, 2011 | 663.3 | 9.3 | 71.5 | |
| June 17, 2011 | 601.5 | 8.9 | 67.5 | |
| May 17, 2011 | 546.7 | 8.2 | 66.4 | |
| April 25, 2011 | 520 | 8.3 | 62.5 | |
| March 29, 2011 | 527.1 | 8.5 | 62.0 | |
| March 9, 2011 | 516 | 8.5 | 60.6 | |
| February 16, 2011 | 409.6 | 7.1 | 57.9 | |
| January 15, 2011 | 509.3 | 8.7 | 58.4 | |
| December 4, 2010 | 546.1 | 9 | 60.9 | |
| November 6, 2010 | 531.8 | 8.5 | 62.7 | |
| October 16, 2010 | 561.2 | 8.9 | 63.3 | |
| September 18, 2010 | 595.2 | 9.1 | 65.3 | |
| August 25, 2010 | 566.4 | 8.5 | 66.4 | |
| July 31, 2010 | 691.8 | 9.9 | 70.1 | |
| July 3, 2010 | 684 | 9.7 | 70.8 | |
| June 11, 2010 | 651.8 | 9.5 | 68.7 | |
| May 19, 2010 | 548.3 | 8.4 | 65.2 | |
| April 29, 2010 | 583.2 | 8.9 | 65.5 | |
| March 31, 2010 | 546.7 | 8.7 | 62.7 | |
| March 7, 2010 | 524 | 9 | 58.4 | |
| January 24, 2010 | 531.2 | 9.3 | 57.3 | |
| December 15, 2009 | 531.1 | 8.9 | 59.7 | |
| November 15, 2009 | 640.5 | 10.1 | 63.5 | |
| October 24, 2009 | 419.6 | 6.6 | 63.2 | |
| October 10, 2009 | 558.1 | 8.1 | 68.6 | |
| September 19, 2009 | 569.4 | 8.5 | 66.6 | |
| August 29, 2009 | 580 | 8.2 | 70.8 | |
| August 15, 2009 | 617.3 | 9.7 | 63.6 | |
| July 27, 2009 | 736.8 | 10.5 | 70.3 | |
| June 27, 2009 | 592.6 | 9 | 65.9 | |
| June 13, 2009 | 611.4 | 9.2 | 66.5 | |
| May 25, 2009 | 607.7 | 8.9 | 68.2 | |
| May 7, 2009 | 511.7 | 8.1 | 63.3 | |
| April 10, 2009 | 490 | 8.2 | 60.0 | |
| March 20, 2009 | 460 | 8.1 | 57.1 | |
| February 24, 2009 | 425 | 7.4 | 57.5 | |
| February 7, 2009 | 430 | 7.9 | 54.2 | |
| January 17, 2009 | 410 | 7.4 | 55.7 | |
| January 3, 2009 | 401 | 6.5 | 61.9 | |
| December 11, 2008 | 373 | 5.9 | 62.7 | |
| November 29, 2008 | 381 | 6.6 | 58.1 | |
| November 22, 2008 | 453 | 7.1 | 64.1 | |
| November 10, 2008 | 445 | 6.7 | 66.4 | |
| October 27, 2008 | 523.1 | 7.3 | 71.2 | |
| October 15, 2008 | 564 | 8.5 | 66.6 | |
| September 27, 2008 | 609 | 9.4 | 64.6 | |
| September 13, 2008 | 623 | 9.8 | 63.8 | |
| August 28, 2008 | 630 | 9.7 | 65.0 | |
| August 14, 2008 | 653 | 10.4 | 62.9 | |
| July 29, 2008 | 556 | 8.6 | 64.5 | |
| July 15, 2008 | 552 | 8.9 | 62.2 | |
| July 1, 2008 | 508 | 7.9 | 64.1 | |
| June 21, 2008 | 405 | 6.4 | 63.2 | |
| June 14, 2008 | 389 | 7 | 55.5 | |
| June 7, 2008 | 412 | 6.9 | 59.6 | |
| May 29, 2008 | 425.3 | 7.4 | 57.6 | |
| May 16, 2008 | 358 | 6.7 | 53.3 | |
| May 3, 2008 | 366 | 6.3 | 58.3 | |
| April 26, 2008 | 364 | 6.1 | 59.5 | |
| April 14, 2008 | 328 | 5.9 | 55.2 | |
| March 30, 2008 | 366.3 | 6.7 | 54.6 | |
| March 25, 2008 | 332 | 6 | 55.7 | |
| March 13, 2008 | 319.3 | 6.2 | 51.4 | |
| February 18, 2008 | 190 | 4.3 | 44.0 | |
| February 6, 2008 | 139 | 2.4 | 57.8 | |
| January 31, 2008 | 215 | 5.3 | 40.5 | |
| January 12, 2008 | 277 | 6.5 | 42.9 | |
| November 29, 2007 | 312 | 6.7 | 46.7 | |
| November 9, 2007 | 376 | 7.8 | 48.3 | |
| October 19, 2007 | 429 | 7.8 | 54.8 |