I’ve read many articles and studies claiming that modern cars are most fuel-efficient under 65mph, such as this one: http://www.fueleconomy.gov/feg/driveHabits.shtml.
However, I keep meticulous driving records, and I have discovered that the 2007 Toyota Corolla gets 8.3% better fuel efficiency by driving at what I will call “leftmost-lane flow-of-traffic speeds,” compared to “normal freeway speeds”. (Phrased [...]
