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All the diesels I work with average 33 mpg to 38 mpg. Before I messed with them that is.

Sooooo don't feel too bad. I'm not really sure how people on here get ludicrous numbers like 55 mpg without really changing anything. Maybe, just maybe, if you had a long stretch of road going 55 mph you can do it, but otherwise you are SOL.

 

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I didn't think South Dakota had large enough cities to drag overall MPG down this far. I know from experience that my ECO MT is a 55 MPG car at 55 MPH and the EPA rating of 42 MPG is at 77 MPH. The CTD has a 4 MPG improvement on the highway so it should do better than my ECO MT. City driving will drag the CTD's MPG way down - rated 27 MPG City. A combined 33 MPG would be an average speed in the low 30 MPH range.

80 mph speed limits will do that

 

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Progress! For 5 miles....