Filled the HAH today and with some warm days and only around 20% highway did 395 miles on 7.9 gallons for the first 50 mpg tank of the new year.
Last two were 45 mpg and change.
310 miles / 11.3 gallons = 27.43MPG
2009 Pontiac Vibe Big Block, aka 2.4L naturally aspirated powerhouse
Mostly back roads with some stop-n-go traffic.
Lifetime efficiency 4.5 mi/kwh over 59,000 miles. I haven't even run a full tank through the Firebird since buying it in September and the XTerra hasn't moved in 2 years except for a smog check...