2013-07-09 594.9 12.44 $2.889 47.82 "Fuel cost after grocery store discount.
52.2 onboard indicated MPG

200 miles of heavy rain at freeway speeds."
2013-07-19 597 12.54 $3.389 47.61 "Commuting, bad rain."
2013-07-30 549.2 11.28 $3.389 48.69 "Commuting, much nicer weather."
2013-08-09 592.1 12.35 47.94 "Commuting"
2013-08-18 430.2 9.2 46.76 "Commuting. Very rainy"
2013-08-24 418.1 8.35 50.07 "Bumped tire pressure from 30psi (factory) to 40psi"
2013-08-30 432.6 9.6 45.06 "Commuting. My wife gets the car a lot more now, and the mileage is taking a hit as a result."
2013-09-07 458.7 9.53 48.13 "Commuting, wife still gets a lot of seat time. 51.0mpg indicated on dash display."
2013-09-16 602.7 12.307 $3.19 48.97 "Commuting. Wife had the car for a lot of it, managed to drag the average up anyway."
2013-10-01 620.4 12.46 $3.149 49.79 "I was able to retain the car more this tank, mileage took a resulting jump."
2013-10-13 651.6 13.04 $3.259 49.97 "Mostly me driving, mostly commuting.

First kilotank! 1000 kilometers."
2013-10-21 455 9.06 $3.089 50.22 "Commuting"
2013-10-29 468.8 9.39 $3.159 49.93 "Commuting"
2013-11-08 630.8 12.36 $3.06 51.04 "Commuting. Data corrected 11/09. Morning lows in the middle 30s. 2nd 1000+ km tank!"
2013-11-19 515.2 11.303 $2.899 45.58 "Commuting. CEL on. IMA light on (went out at about 450 miles). Concerned IMA battery may be going out, maybe should install a C&C? Grid charge pack for balancing? Something."
2013-11-27 595 12.22 $3.189 48.69 "Cool/cold commuting, CEL and IMA on."
2013-12-09 586.6 12.37 47.42 "Commuting. Very cold. CEL and IMA lights on, IMA goes out sometimes when I'm very careful with assist demands.

Fuel used might be off, will edit to correct if I need to."
2013-12-18 521.3 11.21 $2.989 46.5 "Commuting, very cold. CEL on. IMA light on and off with careful management of IMA use.

New grid charger has arrived! I will install in the next few days and that should sort the IMA light with a day's charging. Then I can get a code scanner and cancel the CEL.

[edit] Correct numbers entered 12-19-13"
2014-01-11 541.1 11.94 45.32 "VERY cold, the ""polar vortex"" cold snap had me commuting in temps in the low teens, just 3 degrees one morning. Drivability was affected."
2014-01-21 573.5 12.197 47.02 ""
2014-01-31 484.1 11.39 42.5 "VERY cold, snow and ice."
2014-02-06 530.9 11.98 $2.86 44.32 "Cold, some snow, some rain"
2014-02-17 514.7 11.988 42.93 "Very cold, some snow driving."
2014-02-28 607.6 12.11 50.17 "Warmer temps, easier driving."
2014-03-22 628.9 12.969 $3.239 48.49 "Third 1000+ kilometer tank."
2014-04-02 606.3 12.38 $3.159 48.97 ""
2014-04-12 610 12.25 49.8 ""
2014-04-23 605.5 11.87 $3.43 51.01 ""
2014-05-15 671.4 12.225 54.92 "Commuting, very successful hypermiling! Longest tank ever, 4th 1000+ kilometer tank."
2014-05-28 650.2 12.07 $3.15 53.87 "Commuting. Warm weather makes for good numbers.
5th tank over 1000 km."
2014-06-07 645.2 12.28 $3.46 52.54 "6th tank over 1000km"
2014-06-18 652.3 12.53 $3.36 52.06 "Commuting."
2014-06-28 637 12.156 $3.399 52.4 "Eighth 1000+km tank."
2014-07-14 631.5 12.33 $3.39 51.22 "These are the numbers as I remember them from Thursday July 10. I'll check and revise as necessary.

Grid charge for pack rebalancing."
2014-07-20 701.4 12.499 $3.25 56.12 "Longest tank to date, 10th tank over 1000km, 1st tank over 1100km.

Woohoo!"
2014-07-30 653.4 12.65 $3.039 51.65 "Mileage display showed 56.3mpg. Wildly optimistic."
2014-08-09 665.8 11.954 55.7 ""
2014-08-20 703.3 12.46 $3.189 56.44 "New longest tank, new highest MPG."
2014-09-01 709.4 12.82 $2.899 55.34 "New longest tank. Experimenting a bit with a single rear fender skirt (materials testing for durability)"
2014-09-12 682.8 12.56 54.36 ""
2014-09-26 824 15.22 54.14 "Wife gets a lot of seat time while driving to/from phys. therapy.

Not a new longest tank, includes a supplemental fill."
2014-10-08 686.3 12.306 55.77 "Wife getting a lot of seat time going back and forth to physical therapy. Pretty good numbers in spite of that."
2014-10-22 920 17.73 51.89 "Sweetie's physical therapy sessions are finally done, so this will probably be the last of my low tanks.

Except now the weather is getting cold."
2014-11-01 753.5 13.89 54.25 "Car is pulling to the right. Needs an alignment, probably having an effect on mileage. Also needs tires."
2014-11-11 588.3 12 $2.75 49.03 "Got the alignment fixed, but now Sweetie takes the car most days. <sigh>"
2014-11-19 542.4 12.71 $2.589 42.68 "Cold! Freshly aligned, tires still pretty new, haven't pumped back up to ecomodder pressure. Wife gets the car almost every day and when it comes back, two to five mpg are gone from the dash display."
2014-12-09 619.1 12.4 49.93 ""
2014-12-19 618.7 12.13 $2.399 51.01 "Ugh. Wife gets the car every day. I must hypermile SO HARD to keep her from destroying the tanks..."
2014-12-29 539.7 11.08 $2.089 48.71 "Lowest price per gallon I have seen in literally a decade."
2015-01-09 583.1 12.362 $2.059 47.17 "Very cold."
2015-01-17 588 11.96 49.16 "Much cold."
2015-01-27 597.8 12.228 $1.959 48.89 "Cold, wife gets lots of seat time."
2015-02-04 420.5 9.146 $1.859 45.98 "The fuel cost includes a shopper's discount bonus. I will never see gas this cheap again."
2015-02-12 398.7 8.419 47.36 ""
2015-02-25 410.8 9.49 43.29 "Very cold, lots of snow. Mileage was naturally quite poor."
2015-03-14 502.2 9.839 $2.159 51.04 "Happy Pi Day! 3.14.15"
2015-03-21 497.7 9.747 $2.159 51.06 "Sweetie takes the car after dropping me off, when it comes back as much as 5 mpg are gone from the average. That's not even at the top of the tank, sometimes she loses that much 200 miles in."
2015-04-05 600.8 12.25 49.04 ""
2015-04-13 589.9 11.53 51.16 ""
2015-04-22 586 11.6 50.52 ""
2015-05-01 626.9 11.998 52.25 ""
2015-05-25 661.3 12.13 $2.29 54.52 ""
2015-06-03 533.5 11 $2.459 48.5 "Broke a belt in one rear tire. Got new tires up front, shifted fronts to the rear.

Still need new alignment - shop's alignment rack was down.

Oil and filter at this tank"
2015-06-13 526.8 10.5 $2.599 50.17 ""
2015-06-17 485.9 11.73 $2.559 41.42 "Worst tank ever, I don't even know why. Indicated mileage was 53.3, worst discrepancy from indicated ever.

This tank includes:
Nearly new tires
Long trip at freeway speeds (over 60mpg indicated)
Needing alignment for most of it (got it aligned and went for refill immediately)
Unknown tire pressure
Lots of city streets with the wife driving."
2015-06-29 619.4 11.03 $2.459 56.16 "Trip MPG read low for the first time ever. Second best tank ever - possibly absorbing errors from previous tank?"
2015-07-08 595 11.935 49.85 ""
2015-07-16 593 12.75 46.51 "Mileage is way down. May be due to wife getting lots of seat time, might be due to high temperatures."
2015-07-25 489.7 10.26 47.73 "Dammit, why has my mileage taken such a big dip?"
2015-08-22 373 8.29 $2.22 44.99 "Averages are still down. Think alignment is still off."
2015-09-01 572.8 11.799 48.55 ""
2015-09-12 634 12.08 52.48 "Wife hurt her back, so I got more seat time. It shows."
2015-10-02 523.2 11.37 $1.759 46.02 "After discount gas was $1.759 per gallon"
2015-10-12 567.6 12.057 $1.76 47.08 "Still an excellent price on gas.

Fuel economy continues to stay low in spite of my best efforts. Some I blame on the wife, but more I think is a problem with the car. Showing a CEL, I think more than one O2 sensor is kaput, and I'm not smart enough to figure out which one (there's 3)."
2015-10-23 605 12.52 48.32 ""
2015-11-04 605.9 12.49 $1.959 48.51 "Commuting."
2015-11-13 551.2 12.397 44.46 "Terrible results."
2015-12-07 580.3 11.93 $1.899 48.64 "Mostly commuting. Wife drives 5-30 miles per day."
2015-12-14 464.6 9.36 $1.619 49.64 "This is 1990's fuel prices, people. It's crazy."
2016-01-06 581.8 11.92 48.81 ""
2016-01-27 566.2 11.86 47.74 ""
2016-02-08 610 12.278 49.68 ""
2016-02-14 605.2 12.1 $1.479 50.02 "This was a long trip from my house to the National Farm Machinery Show in Louisville KY and back. There was about 100 miles of snow (not much sticking on the interstate, but some) on the way up, and about 150 miles on the way back - about 20 miles where there was actual snow on the road. Beautiful trip. Made the whole thing plus some shopping afterward on one tank."
2016-02-23 571 12.3 46.42 ""
2016-03-09 402.8 8.53 47.22 ""
2016-03-21 594.5 11.58 $1.8 51.34 ""
2016-04-05 405.2 8.008 $1.69 50.6 ""
2016-04-12 498.7 10.167 $1.88 49.05 ""
2016-04-24 641.1 12.587 $1.9 50.93 "First tank this year to go over 1000km."
2016-05-02 556 11.312 49.15 "Sweetie drove a lot."
2016-05-13 604 12.028 50.22 ""
2016-05-19 454.5 9.2 $2.16 49.4 ""
2016-05-31 649.7 12.689 $2.16 51.2 ""
2016-06-09 618.8 11.639 53.17 "Warmer weather is bringing the numbers up slightly. Sweetie says she is actually trying to hypermile a little now, but still is mostly concentrating on just getting there."
2016-06-18 551 11.41 $2.16 48.29 "Just got it back from the Honda dealership: no more CEL! Woohoo!"
2016-06-27 558.4 10.996 $2.129 50.78 ""
2016-07-02 689.5 12.631 $2.099 54.59 "I gassed up, drove from home to Asheville NC, drove a LOT around there, drove home. 60.1 mpg indicated on the display. It consistently reads about 10% high."
2016-07-12 604.4 12.23 $1.79 49.42 "Back to commuting. I liked vacation driving better!"
2016-07-20 577.3 12.5 46.18 "Sooo much air conditioning."
2016-07-29 549.4 12.45 $1.899 44.13 ""
2016-08-09 607.7 12.647 $1.399 48.05 ""
2016-08-18 571.6 11.853 $1.799 48.22 ""
2016-08-25 564.5 11.675 $1.94 48.35 ""
2016-09-13 608.5 12.744 $1.96 47.75 ""
2016-09-22 595 12.39 $1.99 48.02 ""
2016-10-01 653.4 12.7 $1.99 51.45 "Moving average display showed 56.0mpg - completely unrealistic."
2016-10-11 658.1 12.15 $1.89 54.16 "Turns out the oil change guys are pretty comprehensive, and had reduced my tire pressure to the rating on the placard.

Back at 42 psi, all four corners."
2016-10-20 642.7 12.49 $1.89 51.46 ""
2016-10-29 576.7 10.98 $2.1 52.52 ""
2016-11-05 638.5 12.06 $1.99 52.94 ""
2016-11-15 649.7 12.11 $2.1 53.65 ""
2016-11-25 571.1 11.9 $2.69 47.99 ""
2016-12-09 632.9 12.59 50.27 "30th tank to break 1000km."
2016-12-16 551.8 11.88 $1.86 46.45 "Several days of rain, pretty cold. Terrible results."
2016-12-29 581.9 12.13 47.97 "Ugh. Lots of rain, lots of Sweetie miles. Terrible tank."
2017-01-18 594.4 12.41 47.9 ""
2017-01-28 627.2 12.69 $2.06 49.42 ""
2017-02-07 562.2 11.55 $2.06 48.68 ""
2017-02-14 594.6 12.18 $1.83 48.82 ""
2017-02-22 572.3 10.98 $2 52.12 ""
2017-03-20 477.1 10.41 $2.1 45.83 ""
2017-03-28 634.4 12.51 $1.9 50.71 ""
2017-04-06 632.8 11.98 $2.1 52.82 ""
2017-04-18 605 11.7 $2.2 51.71 ""
2017-04-23 353.2 8.04 $1.99 43.93 ""
2017-04-30 437.7 8.9 $2.08 49.18 ""
2017-05-06 308.7 6.013 $2.15 51.34 ""
2017-05-14 481.9 9.95 48.43 ""
2017-05-22 474 9.36 $1.94 50.64 ""
2017-05-28 381.5 7.228 52.78 ""
2017-06-04 448.2 8.79 $2.03 50.99 ""
2017-06-11 565.7 11.2 $1.999 50.51 ""
2017-06-17 411.1 8.27 49.71 ""
2017-06-24 596.9 12.59 $1.98 47.41 "Commuting in the heat, lots of AC, lots of Sweetie time. Sweetie time kills it more than anything else."
2017-07-04 662.6 12.13 $3.4 54.62 "Long car trip. My house in Knoxville TN to the parents in DC with no fuel stops."
2017-07-07 663.3 12.172 $1.839 54.49 "Long driving vacation"
2017-07-08 308.5 5.67 $1.959 54.41 "Home at the end of my driving vacation, now it's time for the regular Saturday fill-up."
2017-07-17 536.2 10.52 $1.96 50.97 ""
2017-07-24 436 8.65 $1.999 50.4 ""
2017-08-02 539.2 11.33 47.59 ""
2017-08-09 588.6 12.74 46.2 "Ugh. IMA light is on. Front air dam retainer came out, so it's dragging. Gotta get that stuff FIXED.

Grid charge tonight. Deep discharge this weekend."
2017-08-18 585.9 12.27 47.75 "Another lousy fill! BUT! It's on the deep discharger right now. I'm shooting for 50 VDC pack total or less. Preferably less."
2017-08-27 538.4 10.68 $2.16 50.41 ""
2017-09-02 391.3 7.46 $2.6 52.45 ""
2017-09-10 567.4 11.16 $2.599 50.84 "First tank with new engine bay belly pan."
2017-09-27 577.2 12.29 46.97 "Kids driving the car."
2017-10-01 123.3 3.15 39.14 "Son #2 driving."
2017-10-07 201.1 3.74 $2.2 53.77 "Short fill. Instrumentation indicated 56.7 mpg, wildly optimistic. I think this fill and the one previous are cancelling a couple of math errors in fill records."
2017-12-30 386 8.228 $2.29 46.91 "Younger son driving. Not especially hypermiley but not too bad either."
2018-01-03 507.7 11.58 $1.999 43.84 "Commuting. Pretty cold."