2010-06-29 1 0.02 $2.809 50 "Baseline, bogus numbers......."
2010-07-23 132.1 3.27 $2.649 40.4 "Drove hard, idled a lot. No highway miles. refilled with Dogwalk gas. Second fillup, ready for GeoPalooza."
2010-07-23 340.1 6.63 $2.809 51.3 "Completed GeoPalooza tank #1. Refilled at random station with convoy."
2010-07-25 210.2 3.79 $2.799 55.46 "GeoPalooza tank 2 is complete. Refilled with 90 Metro on way home."
2010-07-27 501 11.2 $2.739 44.73 "combined partial fillups. Completed GeoPalooza third tank. Mostly freeway @70-75mph(!). That's the last time I try that.... refilled at Mustard seed."
2010-10-25 363 7 $2.769 51.86 "Tried a bit of P&G, slow driving. No MPGuino yet. On the other hand, had some testing/idling. Refilled with Dogwalk gas - not sure on this fillup, the gas gauge didn't read 100% full. Next tank may suffer."
2010-12-16 267.5 6.79 $2.999 39.4 "First fill with MPGuino, take the FE hit from ""short"" tank as noted - avg mileage over two tanks is about 45mpg. Winter driving. Just added grille block, kill switch, block heater. Not using block heater right now. Refilled with Marathon gas."
2011-02-01 375.7 7.34 $2.939 51.19 "Filled in Frankfort at Shell station. Will be more often now, going to class at Coffeetree. Am using 1000w block heater twice on each tank for one hour each. Costs about 20 cents/tank, which buys 1/20th of a gallon, which goes about 3 miles. Does the equation balance? Hard to say."
2011-02-14 372.4 6.93 $2.969 53.74 "Marathon station 6mi outside Frankfort. Extensive EOC and mid tank shifted target cruising speed down to 48mph. Filled to brim, as usual."
2011-03-01 371.1 6.3 $3.249 58.9 "Refilled at tiny station near Frankfort. Most stations gas is up to $3.39/gal. Maintained target speed of 48mph throughout tank, with some EOC. All driving has been en route to Frankfort class."
2011-03-29 486.8 8.7 $3.449 55.95 "Some off-route driving this tank, hence low numbers. If I want to say 60mpg I had better make it happen. Better tank coming next time."
2011-05-20 479.3 7.596 $3.699 63.1 "How is this tank so good? Many 2mi trips to the neighbors'; I also let other people drive it who got ~47mpg. So this was either a false shutoff (I topped it off, really) or it's just very good mileage...."
2011-07-15 332.3 5.82 $3.569 57.1 "Mom filled, suspect false shutoff. Few highway miles. Mom drove about third of this tank, @ 47mpg or so.

EDIT: note that I have spent $250 on gas in the last year."
2011-09-03 468.9 8.21 $3.699 57.11 "Mom filled, says to brim. Says was stalling, low fuel??"
2011-09-28 390 7.13 $3.219 54.7 "Mom filled. Not so good mileage, but it is getting colder... Mom drove a bit this tank @46mpg."
2011-10-12 502.4 9.95 $3.329 50.49 "Giving up on hypermiling. Just too slow..."
2011-12-01 311.8 7.09 $3.089 43.98 "After hitting tree. Hypermiling done. Freeway speeds on 1/3 of tank."
2011-12-02 291.2 6.96 $3.059 41.84 "All freeway @75 mph. Went to AL to Wayne Keith's."