> wrote:

: Sad isn't it. It is like asking a person for directions and he
: tells you to go south past my dads house then turn right. If
: you get to my brothers house your are three blocks past it. LOL
: >
: > Amazing. Our educational system on display.

I don't think OP needs help with division or what to divide into what.
I interpreted his question as: how to estimate the # of gallons
consumed over a measured distance? I myself wonder just how accurate
the auto shut-off mechanism is for this purpose. But it gives an
estimate.

In the end, I care not so much about the most accurate mpg number (I
mean, what am I going to do, not buy groceries or drive to see my
family if mpg is x instead of y?), but about getting a warning if it is
consistently worse than usual.