Originally Posted By: brianl703
Wind can make a difference, too. I've gotten GREAT gas mileage driving south in the winter..but the wind was blowing from the north.
I don't think it was the wind, it was because you were driving down hill.
(that's what my father always said: driving down hill when going south and up hill when going north [on the globe])
I neglected to say that my car has an average mpg reading, not an instant mpg reading. On my 13hr/750 mile trip using cruise control on a several hour portion of the trip where the road was fairly flat, the average mpg decreased when driving between 55-65 and increased when driving at 70. I don't know at what speed over 70 it will start to decrease; I guess I have to plan a trip out west to drive on one of those 75-80 mph posted interstates.
Wind can make a difference, too. I've gotten GREAT gas mileage driving south in the winter..but the wind was blowing from the north.
I don't think it was the wind, it was because you were driving down hill.
I neglected to say that my car has an average mpg reading, not an instant mpg reading. On my 13hr/750 mile trip using cruise control on a several hour portion of the trip where the road was fairly flat, the average mpg decreased when driving between 55-65 and increased when driving at 70. I don't know at what speed over 70 it will start to decrease; I guess I have to plan a trip out west to drive on one of those 75-80 mph posted interstates.