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2014 ATS4 2.0T. auto Mocha Steel Metallic
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41 Posts
Discussion Starter #1
Got back yesterday 1420 mile round trip Michigan to Kentucky and back average mpg 29.8. Worst tank 26 including 2 miles in 45 minute traffic jam on I 65. Best 30.0 in northern Indiana flat lands. Lots of construction going on. Worse experence, woman driving a Mercedes tried to take the side off the Cad. Changed lanes without bothering to look. Lucky the shoulder wasn't closed.
 

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2019 XT4 Premium AWD Build 7/22/18 / 2013 ATS4 3.6 Premium Build 12/21/2012
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1,622 Posts
Re: road trip'

Its right in his header...Automobile(s): 2014 ATS4 2.0T. auto Mocha Steel Metallic
 

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Charger Scat Pack- Auto/Corvette LS3-Auto
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2,433 Posts
Car 2014 2.0T Auto - 90%+ Hwy - Avg Speed 70 mph - Jarrell, TX to Jacksonville, NC
My mileage for this road trip is as follows:

1st fill - 300 miles/10 gals = 30 mpg
2nd fill - 319 miles/9.8 gals = 32.55 mpg
3rd fill - 350.4 miles/10.6 gals = 33.05 mpg
4th fill - 430.3 miles/14.3 gals = 30.09 mp (1.5 days of city driving)

NOTE - all calculation were done with mileage from the car and fuel slips.
 

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18 Coupe, turbo, auto, dp,E 85,tune
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825 Posts
Very nice mileage numbers. Mine seem to go down rapidly with a 75+ mph average. As usual sweet spot is slower than what I average. :)
 

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Charger Scat Pack- Auto/Corvette LS3-Auto
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2,433 Posts
I tried speeds from 60 to 80 and 70 seems to be my sweet spot. According to may scan gauge I am not in boost, the fuel trims are spot on and the cat temp is within normal range. Checked the oil and it would be hard to tell if any was used. The oil life dropped about 10% in 1,400+ mile trip.
 

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2019 Mercedes E450 Cabriolet, previous 2013 ATS 2.0T AWD, 1973 Corvette 454
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2,363 Posts
I usually reset only when I'm taking long trips.
 

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2017 ATS-V Sedan, Vector Blue/Black, 6MT
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994 Posts
I reset mine every tankful, and compare the results to my calculations. The computer is usually within 0.5 mpg either higher or lower than actual, and usually more accurate than that. My current mileage is up a bit incidentally since I had the piston/plug campaign performed. My current reading is 28.2 MPG on Premium, at an average 33.2 MPH, which equates to about 65-70% highway, with about 200 miles on this tankful. Never been this good with this pattern, so I'm very pleased. Hopefully, it will keep up. Also, it runs better, too.
 
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