The 8 hour comment was directed at someone suggesting i go 45. which is how long it would probably take going from austin to witchita falls if i was driving that slow.
I get about 18mpg running 80ish, i dont know what my average speed on the trip is.
As far as safety is concerned, its more about traffic speed.
Between austin and dallas i could slow down and not really be a big deal. driving through dallas on 35 or the major highways going slower than 70 is kinda crazy at times. everyone drives 75 or faster. going 85 i get passed regularly.
Lastly, i am on cruise control for most of the trip which is why i was looking for physical mods and not techniques.
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