Quote Originally Posted by MeanGreen
so your car gets roughly 50mpg?...I call uber BS
Um...no. My car can run on 87 octane swamp water.

87 octane = $1.99 (I think $1.81 at the time, but we'll say $1.99 for today's rate)

5 / 1.9 = 2.6 (We'll say 2.5 for simplicity.)

100 / 2.5 = 40mpg (100 / 2.6 = 38mpg)

And yes, my car does get anywhere between 35-40mpg depending on how I drive it.

EDIT: Sorry. It's 87 octane, not 89.