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Originally Posted by Packy
Keep in mind fuel efficiency starts dropping around 65-70mph really fast because of drag and higher RPMs. So between doing 2/3 city and 1/3 highway around 80, 30mpg is pretty good!  |
Does anyone know the optimium speed for fuel efficiency for auto? I would think it is actually lower than 65. I recall we moved the speed limit to 55 back then to save fuel. So I would think "most cars" is around 55 to 60 range.
- Tim