John's Gas Mileage with Honda Civic Hybrid

Best mileage to date is in RED, next best in orange.
Added cumulative mileage
Last update: 1/6/2004

date mileage miles mpg (true) mpg (dash) cumulative mpg   gallons Brand Oct Hwy? comment Readout error
                (for mpg) ane     Dash-true mpg
12/28/02 308           full       purchased car  
01/23/03 705 398.0 33.9 36.7 33.87 33.79 11.75         2.8
01/26/03 1000 295.0 29.0 32.1 31.61 31.57 10.17 PDQ       3.1
02/04/03 1383 382.0 33.2 35.9 32.14 32.14 11.53 PDQ       2.7
02/10/03 1704 322.0 32.1 35.2 32.13 32.11 10.03         3.1
02/20/03 1817 111.0 33.4 43.1 32.22 32.24 3.32 Mobil     mpg-not a typo 9.7
02/21/03 2109 292.0 37.8 41.2 33.02 33.03 7.72         3.4
02/26/03 2330 221.0 35.6 36.3 33.26 33.27 6.25         0.7
03/01/03 2500 170.0 34.5 ? 33.35 33.36 4.93 PDQ        
03/07/03 2831 331.0 33.9 36.7 33.43 33.44 9.74 Mobil       2.8
03/14/03 3116 285.0 34.6 38.2 33.57 33.58 8.18 PDQ       3.6
03/21/03 3494 378.0 38.1 41.2 34.05 34.06 9.92         3.1
03/26/03 3939 445.0 42.4 45.4 34.89 34.90 10.49 Amoco   Much Hwy   3.0
03/28/03 4374 433.0 37.7 41.2 35.17 35.19 11.50 PDQ       3.5
03/29/03 4681 308.0 42.7 45.0 35.61 35.63 7.20     All Hwy   2.3
04/12/03 5043 363.0 32.0 35.9 35.32 35.33 11.30 PDQ?       3.9
04/13/03 5555 512.0 42.0 45.4 35.87 35.88 12.20 Amoco/BP   All Hwy   3.4
04/19/03 6046 491.0 40.9 43.9 36.26 36.26 12.00 Shell       3.0
04/20/03 6542 496.0 42.4 45.0 36.69 36.69 11.70 Mobil   All Hwy   2.6
05/16/03 7007 465.0 36.1 40.8 36.65 36.65 12.87 Mobil       4.7
05/17/03 7262 256.0 41.1 44.2 36.80 36.80 6.19 Amoco/BP   Much Hwy   3.1
05/19/03 7581 319.0 46.6 46.5 37.14 37.14 6.84 Exxon   All Hwy   -0.1
05/24/03 8051 469.0 42.3 45.4 37.42 37.42 11.08 PDQ   2/3 Hwy   3.1
05/30/03 8542 491.0 44.6 47.6 37.78 37.78 11.01 Texaco   2/3 Hwy   3.0
06/01/03 9040 499.0 43.7 47.3 38.08 38.08 11.40 Mobil   All Hwy   3.6
06/07/03 9438 398.0 41.0 44.2 38.20 38.20 9.70 Conoco   1/3 Hwy   3.2
06/21/03 9873 435.0 38.5 42.7 38.21 38.21 11.29 Shell       4.2
06/29/03 10360 486.9 41.5 44.6 38.36 38.36 11.72 Amoco   2/5 hwy   3.1
07/14/03 10819 459.6 37.8 41.2 38.33 38.33 12.16 CITGO       3.4
07/28/03 11281 461.3 38.8 41.6 38.36 38.36 11.87 Mobil 87     2.8
08/11/03 11734 452.8 36.9 40.4 38.30 38.30 12.27 Mobil 89   Kayak on roof 3.5
08/20/03 12177 443.5 35.1 38.2 38.17 38.17 12.65 CITGO 89   Kayak 3.1
08/25/03 12510 333.0 34.6 35.9 38.06 38.06 9.62 Marathon 89   1/2 w/ Kayak 1.3
09/07/03 12995 484.3 40.0 43.1 38.13 38.13 12.11 Exxon 87     3.1
09/20/03 13464 469.4 39.1 41.6 38.16 38.16 12.01 Exxon 87     2.5
10/07/03 13889 425.0 37.5 39.3 38.14 38.14 11.32 Mobil 87     1.8
10/21/03 14327 438.0 36.0 39.3 38.08 38.08 12.15 PDQ 87     3.3
11/01/03 14744 417.4 33.0 37.0 37.91 37.91 12.64 PDQ 87     4
11/15/03 15131 386.9 32.6 35.2 37.75 37.75 11.87 Mobil 87     2.6
11/29/03 15557 425.1 35.0 37.4 37.67 37.67 12.15 Mobil 87     2.4
12/09/03 16003 446.3 35.6 39.3 37.60 37.60 12.53 PDQ 87     3.7
12/18/03 16378 375.1 31.5 34.8 37.44 37.44 11.89 Mobil 87     3.3
12/29/03 16616 237.8 34.3 38.2 37.39 37.39 6.94 BP/Amoco 87     3.9
Mobil 87
37.4 37.39 436.21 3.2

Note: gas type is tagged to the row for which the mileage is determined; in reality, it was the type purchased at the previous fill up. "Dash" mpg refers to the console readout for mpg, whereas TRUE mpg is elapsed miles divided by gas added to fill tank.

I think it would be very useful to compare mileage data from many Honda Civic Hybrid owners, particularly to sort out the effect of different brand gas. Please send me your experiences.
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