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#29 |
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I went from SW GA to upstate NY and back, about 2,800 miles total and averaged 23.8 doing 85% interstate speeds (70-75). The rest was state roads and maybe 200 miles of in-town.
When I started out, I filled up and reset the MPG calculator on the DIC and never touched it again until I got back home. I was pretty pleased with results.
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2013 1SS/RS Coupe L99, Stainless Power Works LT Headers, SCT X4 Custom Tune from RDP, CAI Inc. Air Intake w/ Apex Scoop, VMAX CNC Ported Throttle Body, Solo Axle-Back Exhaust w/ J-pipes, Apex Catch Can, Husky Splash Guards, Heritage Grille, 3D Carbon Rear Spoiler, Oracle Chrome Turn Signal Bulbs, GM Reverse Light Trim Billets, Gorilla Black Locking Lugs, Emblem Pros Retro SS Badges/Custom Retro SS Kickplates/Under-hood Bowtie, 35% window Tint, Nitto Motivo Tires (6-8-18)
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#30 |
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#31 | |
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#32 |
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That kind of gives you a false average "per trip". If you make the same trip again and drive the same way, only resetting at the start of your trip and checking MPGs at the end, you will see your mileage go down.
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2013 1SS/RS Coupe L99, Stainless Power Works LT Headers, SCT X4 Custom Tune from RDP, CAI Inc. Air Intake w/ Apex Scoop, VMAX CNC Ported Throttle Body, Solo Axle-Back Exhaust w/ J-pipes, Apex Catch Can, Husky Splash Guards, Heritage Grille, 3D Carbon Rear Spoiler, Oracle Chrome Turn Signal Bulbs, GM Reverse Light Trim Billets, Gorilla Black Locking Lugs, Emblem Pros Retro SS Badges/Custom Retro SS Kickplates/Under-hood Bowtie, 35% window Tint, Nitto Motivo Tires (6-8-18)
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#33 |
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I see your point which is true. I just have habit of resetting each time I fill up.
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#34 |
![]() ![]() ![]() Drives: 2014 CTS-V- totalled/ 45TH ss- SOLD Join Date: May 2013
Location: DFW, TX
Posts: 1,096
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On the trip from DFW to Georgetown with traffic in Waco for about 20 minutes, I averaged 26.1. This is after a tune and AFM turned off. It is entirely possible if his tires are at the right pressure, alignment is perfect, heat, humidity and wind speed+direction, and depending on the pavement driven. Most roads here are concrete, which seems to have less frictional resistance than say regular Tarmac or Asphalt.
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2014 CTS-V... with some go-fast bits coming
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#35 |
![]() ![]() ![]() ![]() Drives: 2012 1SS LS3 M6 black on black :) Join Date: May 2012
Location: SD
Posts: 1,342
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I don't think the DIC mpg is totally correct. I have done the actual math after filling up and compared it to the DIC and they are not the same.
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#36 |
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I just did the math. The just drove 432 miles on 16 gallons of fuel. Which came out to 27mpg. So yes the DIC is off
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#37 |
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Drives: 2SS/RS Join Date: Sep 2008
Location: Western North Carolina
Posts: 7,344
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#38 | |
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Buick 455 Fan
Drives: 1970 Buick, 2012 1SS LS3 Join Date: Jun 2010
Location: Boston MA
Posts: 5,957
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Quote:
exactly.
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#39 |
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Most of the time when I'm back home I average 18mpg. So I'm enjoying this.
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#40 |
![]() Drives: 2013 Camaro 1LE Join Date: Aug 2013
Location: Lebanon, OH
Posts: 127
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My average is about 19.5-19.8 with a good mx of driving. My 98 TA M6 definitely did better.
But it wasn't quite as much fun.
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#41 | |
![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Drives: 2017 Mosaic Bk ZL1 M6 Join Date: Jul 2009
Location: South of Raleigh, NC
Posts: 9,615
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1 Fill tank 2 Write down miles on odometer. 3 Drive till tank is almost empty then fill up again. 4 Record gallons pumped and miles on odometer. 5 Subtract miles from step 2 from miles on step 4. 6 Divide result by gallons pumped. This is as close as you're going to get. You're welcome
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#42 | |
![]() ![]() Drives: 2014 Camaro SS Join Date: Sep 2013
Location: Waco, TX
Posts: 988
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I'm kidding, I'm always surprised how long it takes folks to get across the northern states since they're so small compared to Texas. I tell ya what, I always hate having to drive 9 hours to visit family for Thanksgiving and then 7-10 hours to visit my girls family for Christmas...thank goodness she has a truck we take because I don't think I could handle putting them kinds of miles on the Camaro. |
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