500 miles at 55mph = a little over 9 hours. 500 miles 75 = 6.6 hours. 500 miles at 90mph = 5.5 hours.
One of my vehicles has almost 200k miles, most of it driving 80-90 mph where it averages 20 mpg. That's less than a 19% savings compared to driving 55. It's called 6th gear, and 4 hours of trip time is certainly worth the extra 23 dollars spent in fuel.
500 miles at 55mph = a little over 9 hours.
500 miles 75 = 6.6 hours.
500 miles at 90mph = 5.5 hours.
One of my vehicles has almost 200k miles, most of it driving 80-90 mph where it averages 20 mpg. That's less than a 19% savings compared to driving 55. It's called 6th gear, and 4 hours of trip time is certainly worth the extra 23 dollars spent in fuel.
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