2015-10-18 310 19.504 $1.979 15.89 "Starting point: Stock setup at 116K miles

Eco-mod: all tires at 44 psi (max on tire wall)

Hypermile: none

Maintenance: highly neglected for 20k miles"
2015-10-26 310 19.445 $1.799 15.94 "Eco-mod: no change from last tank.

Hypermile practice: none"
2015-11-01 340 19.517 $1.829 17.42 "Eco-mod: #1 adding a grill mesh insert replacing the stock grill insert. This closes the grill vent openings from stock

Hypermile: none

Maintenance: oil (synth) and filter change, sea foam treatment (engine, gas, and oil), spark plug (copper) change"
2015-11-10 325 18.123 $1.899 17.93 "Eco-mod: no change from last tank

Hypermile: hills and stop lights"
2015-11-21 292 19.454 $1.799 15.01 "Eco-mod: #2 Added grill block prototype #1, covering 57% of grill openings. The grill mesh insert mod done earlier further closes the remaining vent gaps.

Hypermile: hills and stoplights

Maintenance: New tires and alignment. Changed from street terrain (230/75/16) to all-terrains (235/70/16-106T). Used manufacturer rating of 35 psi in all tires."
2015-12-02 325 18.649 $1.689 17.43 "Eco-mod: no change from last tank.

Hypermile: hills, stop lights, and neutral gear use at stops.

Maintenance: Changed tire pressure to 44 psi (max pressure on tire wall)."