Hi Tbaleno:

___That was today. What about tomorrow, the next day, and the day after that? Unless you fill up every day, there is a bit of guesstimating and you have to average to something. Do you think a 24 degree/38 degree/28 degree/43 degree/18 degree/27 degree/15 degree temp commute can be averaged down to 5 degrees? There is upwards of 15 degree difference between my home and work locations in the summer let alone the day, to afternoon, to night commute temp differences in my own driving commutes.

___Good Luck

___Wayne R. Gerdes
___Hunt Club Farms Landscaping Ltd.
___Waynegerdes@earthlink.net