Nerdiness? I have a chapter in that book too.

My commute is 46 miles each way and it takes about an hour to complete, about half is 55MPH multiple lane freeway and about half is 45 limit highway.

I suprised that simple math shows my average trip speed only 47MPH which is a major contributor to my numbers.
It the slower speed only adds about 10 minutes each way.
Sometimes breaking ranks with the masses can save you alot of money, especially with today's gas prices!

Efficient drivers do it better.
1003 miles a tank personal record. 74MPG calculated. HCH1 CVT