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Normal refills occur when one fuel bar is remaining.  I do not top off the tank.
Highest Tank ==>			72.2				Lowest Tank ==>			40.3
Averages ==>		54.5	60.1			501	15	51,114	9.29	937.88
Date	Tank MPG	Lifetime Average	12-Month Average	Average Temp. ºF	Delta MPG	Tank Miles	Tank Days	Total Miles	Refill Gallons	Total Gallons	Notes
08/26/04				69.0		3.0		3			Picked up car
09/02/04	44.6	45.1	45.11	67.6		279.4	7	282	6.260	6.26	Gallons estimated based on Prius MPG
09/09/04	50.4	47.7	47.75	65.9	5.8	467.5	7	750	9.446	15.71	2 fuel bars remaining
09/10/04	43.4	45.3	45.32	65.0	-7.0	439.4	1	1,189	10.539	26.25	Complete Interstate driving
09/12/04	45.9	45.7	45.74	64.0	2.5	420.1	2	1,609	8.937	35.18	About 95% Interstate driving
09/17/04	49.2	46.5	46.50	63.2	3.3	490.6	5	2,100	9.977	45.16	About half Interstate driving and then back to normal
10/02/04	49.9	46.9	46.94	59.6	0.7	452.0	15	2,552	9.208	54.37	Starting to get cold - temperature affects mileage
10/11/04	48.9	47.3	47.32	55.0	-1.0	299.0	9	2,851	5.887	60.25	Good price on gas, refilled early
10/27/04	50.5	47.2	47.18	50.6	1.6	441.0	16	3,292	9.525	69.78	Might this be the last 50+ tank of the year?
11/10/04	50.0	47.4	47.39	49.5	-0.5	483.8	14	3,776	9.892	79.67	Last fuel bar blinking.
11/22/04	44.0	47.2	47.18	44.2	-6.0	313.9	12	4,090	7.016	86.69	Found the tire pressure to be very low. AARGH!
11/28/04	48.3	47.0	47.04	35.8	4.3	437.1	6	4,527	9.554	96.24	400 highway miles averaging ~62MPH - outbound
11/30/04	47.5	47.1	47.11	34.0	-0.8	449.5	2	4,976	9.384	105.63	400 highway miles averaging ~62MPH - return
12/11/04	43.1	46.7	46.66	34.3	-4.4	405.9	11	5,382	9.736	115.36	The avearge temp fails to capture the bitter mornings
12/22/04	40.4	46.5	46.52	22.3	-2.7	387.6	11	5,770	8.678	124.04	Fighting to keep the mileage above 40
01/03/05	41.8	46.0	45.97	25.7	1.4	350.4	12	6,120	9.090	133.13	Little bit of a warm stretch
01/15/05	40.6	45.6	45.61	23.7	-1.2	348.2	12	6,468	8.696	141.83	Hopefully it gets warmer from here
01/26/05	41.5	45.2	45.24	18.7	0.9	356.8	11	6,825	9.051	150.88	Even with colder temps I was able to improve MPG
02/03/05	46.2	45.1	45.09	25.4	4.7	381.9	8	7,207	8.952	159.83	Steller tank performance!
02/16/05	46.0	45.3	45.30	33.4	-0.2	401.6	13	7,610	8.127	167.96	This warm weather isn't going to last.
03/06/05	44.2	44.9	44.93	27.6	-1.8	363.6	18	7,974	9.470	177.43	Out of town for a week
03/16/05	44.6	44.9	44.93	29.3	2.4	435.0	10	8,410	9.687	187.11	Temperature is creeping up!  Hurray!!  :-)
03/30/05	50.0	45.1	45.09	36.4	5.8	503.4	14	8,913	10.501	197.61	First 50MPG tank of the season.  More to come.
04/13/05	53.0	45.6	45.62	46.5	3.0	540.3	14	9,454	9.550	207.16	Is this a preview of upcoming mileage?
04/30/05	51.8	45.6	45.62	47.9	-1.2	456.3	17	9,910	9.984	217.15	Could have gone farther, but decent gas price.
05/15/05	51.6	45.9	45.89	50.7	-0.2	518.9	15	10,429	10.044	227.19	Second half of the last tank and this one, A/C on
05/30/05	55.5	46.3	46.33	56.4	3.9	514.0	15	10,943	8.943	236.13	First ever 55MPG tank!!
06/17/05	56.0	46.6	46.59	68.6	0.5	553.5	18	11,496	10.550	246.68	Was fighting at the end to keep it above 56
07/07/05	58.2	47.2	47.17	70.0	2.2	612.9	20	12,109	10.000	256.68	Some of the time was carpooling
08/03/05	60.0	47.5	47.47	74.2	1.8	589.3	27	12,699	10.773	267.46	A whole month on a single tank!
08/24/05	58.5	48.0	48.01	72.0	-1.5	624.1	21	13,323	10.014	277.47	Some A/C
09/14/05	58.3	48.4	48.66	71.5	-0.2	573.2	21	13,896	9.834	287.30	Getting gas every three weeks.  I could get used to this.
09/22/05	55.4	48.4	48.80	62.3	-2.9	282.5	8	14,178	5.366	292.67	Decided to short-tank for fear of rising costs (Hurricane Rita)
10/15/05	55.2	48.6	48.95	60.0	-0.2	526.3	23	14,705	9.896	302.57	Glad I short-tanked the last one.  Prices spiked and dropped.
10/23/05	53.2	48.7	49.01	49.3	-2.0	369.9	8	15,075	7.047	309.61	Decided to short-tank because the price was quite attractive.
11/15/05	50.8	48.7	49.07	45.4	-2.4	500.9	23	15,576	10.431	320.04	Most likely the last 50+MPG tank for quite some time.
11/30/05	44.4	48.7	49.32	33.0	-6.4	427.1	15	16,003	8.830	328.87	Mileage dropping like a stone.
12/14/05	40.3	48.4	48.97	18.8	-4.1	362.1	14	16,365	9.270	338.14	Dissapointing Mileage; but accounted for with dropping temps
12/30/05	45.0	48.1	48.83	25.9	4.7	390.4	16	16,755	10.071	348.21	A nice turn in the weather helped with this one.
01/22/06	48.6	48.1	49.79	34.7	3.6	458.4	23	17,214	9.354	357.57	First refill of the new year.
02/09/06	46.8	48.2	50.18	30.7	-1.8	429.0	18	17,643	8.836	366.40	OEM EV Button Installed during this tank
03/03/06	48.2	48.0	50.22	25.1	1.4	455.0	22	18,098	10.372	376.78	MPG went up while temp went down?  EV button?
03/26/06	46.7	48.0	50.80	34.1	-1.5	425.3	23	18,523	9.409	386.19	Dissapointed in the mileage drop.  May be using the EV too much
04/19/06	54.5	48.2	51.27	47.3	7.8	489.1	24	19,012	8.405	394.59	Man how I love warm weather.
05/05/06	54.0	48.3	51.01	51.9	-0.5	553.4	16	19,565	10.789	405.38	5 MPG over last year at this time.
05/16/06	54.6	48.3	51.28	51.0	0.6	534.3	11	20,100	10.452	415.83	It rained 9 of the 11 days.   Still better than last year.
06/13/06	57.9	48.5	51.27	61.0	3.3	618.8	28	20,718	10.980	426.81	I was really hoping to break 60mpg with this one.
07/01/06	58.9	48.8	51.67	68.0	1.0	597.2	18	21,316	9.912	436.72	Used the Air conditioner on this one.  Notable hit to mileage.
07/20/06	60.5	49.1	52.17	72.0	1.6	601.0	19	21,917	9.696	446.42	First 150 miles was at 53.4 MPG.  Brought it up
08/02/06	61.7	49.2	51.77	78.0	1.2	574.2	13	22,491	10.782	457.20	New personal record; I suspect 10.782 is from stretching the bladder
08/21/06	62.1	49.5	52.14	70.0	0.4	640.0	19	23,131	10.326	467.53	New personal record! I triple-checked that temperature drop.
09/14/06	63.0	49.9	53.04	66.8	0.9	686.2	24	23,817	9.555	477.08	Another Personal Record!   Again, temperature down, MPG up.
09/26/06	61.2	50.2	52.81	59.0	-1.8	546.0	12	24,363	8.439	485.52	The last bip was blinking but only needed 8.5 gallons.
10/13/06	60.8	50.2	52.72	52.5	-0.4	566.1	17	24,929	11.054	496.58	I’m sure this will be my last 60+ tank of the year.
10/30/06	56.3	50.4	52.96	43.5	-4.5	544.7	17	25,474	9.338	505.91	First 1/2 Interstate.  Severe temp drop and very windy
11/15/06	56.5	50.5	53.38	41.6	0.2	480.3	16	25,954	7.522	513.44	Surprised at maintaining MPG.
11/30/06	55.3	50.5	53.38	41.4	-1.2	414.5	15	26,369	8.806	522.24	Getting Cold.  Got gas prior to Winter Storm.
12/15/06	50.2	50.7	53.92	27.1	-5.1	456.2	15	26,825	7.333	529.57	First time I used the heater this winter.
12/29/06	53.9	50.5	53.42	37.0	3.7	363.5	14	27,188	8.699	538.27	First full tank with a blocked grill.  Temperature increase.
01/11/07	54.5	50.5	54.55	37.8	0.6	459.4	13	27,648	9.610	547.88	Nice uptick in temperatures.
01/30/07	50.1	50.5	54.37	24.5	-4.4	462.2	19	28,110	9.193	557.08	Cold.  Very cold.
02/08/07	44.0	50.4	54.15	5.6	-6.1	393.8	9	28,504	9.001	566.08	Flat tire, dead battery, record cold; I shouldn't complain.
02/22/07	52.0	50.4	54.05	16.3	8.0	439.2	14	28,943	8.500	574.58	Mileage increase outpaced the temperature increase
03/06/07	52.5	50.4	54.20	27.3	0.5	410.5	12	29,353	7.897	582.47	Would have liked better but the snow and rain kept falling
03/23/07	57.0	50.4	54.39	38.6	4.5	495.3	17	29,849	10.343	592.82	Looking forward to summer weather.
04/07/07	58.3	50.6	55.29	46.5	1.3	576.6	15	30,425	8.661	601.48	Got off to a warm start then turned cold again.
04/22/07	57.5	50.6	55.12	41.9	-0.8	503.0	15	30,928	9.780	611.26	Had another cold snap.  Hopefully the last of the season.
05/02/07	61.2	50.8	55.02	54.2	3.7	587.9	10	31,516	9.387	620.65	1. First 60+ tank of the season! I think I'll start counting them.
05/15/07	62.6	51.0	55.69	58.9	1.4	591.5	13	32,108	9.093	629.74	2. Almost a record tank, but last-minute rain ruined it.
05/31/07	64.1	51.1	56.00	64.4	1.5	583.7	16	32,691	10.056	639.79	3. New personal record.  56 MPG here I come!
06/16/07	66.0	51.3	56.67	69.8	1.9	693.5	16	33,385	10.483	650.28	4. New record. Kept dropping below 66 had to fight to keep it up.
07/02/07	66.0	51.6	57.17	70.3	0.0	664.1	16	34,049	9.719	660.00	5. Was hoping to exceed 66.0.  Hopefully next time.
07/20/07	63.7	51.7	57.14	73.8	-2.3	622.4	18	34,671	10.483	670.48	6. It was a bad tank anyway ending with 110 miles of highway.
08/08/07	66.7	51.9	57.26	75.4	3.0	676.8	19	35,348	10.515	680.99	7. New Record!  First 110 miles was highway @ ~56MPG.
08/28/07	66.7	52.1	57.70	71.3	0.0	678.8	20	36,027	10.810	691.80	8. Saw 67MPG for a few days then the rain came.
09/15/07	65.1	52.4	58.28	67.5	-1.6	660.8	18	36,688	9.001	700.81	9. Maybe I can squeak out one more 60+ tank this year.
10/02/07	68.0	52.5	58.36	67.5	2.9	612.4	17	37,300	9.500	710.31	10. New record!  In October!  What's up with that?
10/08/07	63.0	52.6	57.90	71.3	-5.0	564.9	6	37,865	9.384	719.69	11. This tank was more than 75% highway miles.
10/15/07	64.9	52.8	57.94	55.2	1.9	596.5	7	38,462	9.175	728.86	12. First 375 miles were highway miles.  The rest as normal.
11/02/07	59.5	52.9	58.39	53.5	-5.4	556.9	18	39,019	9.021	737.89	Finally dropped below 60mpg.  Temps and short trips contributed.
11/17/07	59.5	52.9	58.36	41.8	0.0	543.6	15	39,562	9.430	747.32	Such a high tank surprised me given average temperature.
12/04/07	55.3	53.0	58.18	32.6	-4.2	478.4	17	40,041	8.255	755.57	Cold temps and short trips brought it down.  Was holding high 50s.
12/15/07	53.4	53.0	58.28	23.4	-1.9	450.5	11	40,491	9.003	764.57	This tank was Chicagoland gas.  Next tank from Wisconsin.
01/04/08	55.8	53.0	58.58	28.8	2.4	485.0	20	40,976	9.053	773.63	Temp and Mileage up.  Wisconsin gas.
01/18/08	57.8	53.0	58.49	33.1	2.0	509.6	14	41,486	9.068	782.69	Surprised at the MPG.  Was in 58 until right at end.
01/31/08	50.1	52.9	58.52	14.7	-7.7	438.1	13	41,924	9.144	791.84	Temperature was a major factor as were a couple snow storms.
02/14/08	53.6	53.0	58.70	22.6	3.5	461.0	14	42,385	8.409	800.25	Major snow storms during this tank.  Temperatures improving.
02/27/08	51.9	53.0	59.11	19.1	-1.7	458.2	13	42,843	8.409	808.66	Cold weather and snow storms and short trips.
03/10/08	56.2	52.9	58.91	24.7	4.3	493.6	12	43,337	10.248	818.90	Hopefully the temps are on the way up.
03/25/08	59.3	53.0	59.27	34.3	3.1	571.4	15	43,908	9.132	828.04	So frustrated.  450 miles at 60+ MPG and then major snow storm.
04/14/08	58.8	53.1	59.79	40.7	-0.5	561.5	20	44,469	9.304	837.34	With higher temps I expected better mileage.  Just didn't happen.
04/28/08	66.9	53.2	59.77	51.2	8.1	601.3	14	45,071	9.175	846.52	1. First 60+ tank of the season.  Was at 67.8 but then bad weather.
05/19/08	62.7	53.3	60.13	49.8	-4.2	584.4	21	45,655	9.289	855.80	2. Was hoping to get higher but will take another 60+ mpg tank.
06/06/08	65.9	53.4	60.08	56.7	3.2	624.2	18	46,279	10.161	865.97	3. Relatively chilly weather so far this season
07/02/08	71.2	53.7	60.37	68.6	5.3	700.2	26	46,980	9.509	875.47	4. First 70+ tank!! Yippee
07/23/08	72.2	53.8	60.27	70.6	1.0	663.6	21	47,643	10.091	885.57	5. New personal record.