1 Census 2010 Race for Effingham County, Illinois. 2  Census 2010 Latino for Effingham County, Illinois. 3  Census 2000 Race for Effingham County, Illinois. 4  Census 2000 Latino for Effingham County, Illinois.  Illinois Voters for Effingham County, Illinois.
On average, a truck traveling at 65 mph instead of 75 mph will experience up to 27-percent improvement in fuel consumption. As a rule of thumb, for every one mile per hour increase in speed, there is a corresponding 0.14 mile-per-gallon (mpg) fuel consumption penalty, says Kedzie.
In the worst case scenario a truck getting 4 mpg and paying $4/gallon for fuel would have a cost per mile of: $1.00 per mile. On the other extreme a truck getting 8mpg and an average fuel cost of $3.80/gallon would have a fuel cost per mile of: .47 cents per mile. You should be somewhere in between.