05-04-2014, 01:28 PM | #1 |
Drives: 1LS MT Join Date: Feb 2014
Location: Los Angeles
Posts: 70
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Amazing MPG
Over the last two days I checked the Average Fuel Consumption on a stretch of flat Highway (about 15 miles). My car is a 2014 1LS.
AFC @ 75 mph = 35.5 AFC @ 70 mph = 32.0 Why this discrepancy? going 5 mph faster I need less gas. Anyway.......almost like a Prius. |
05-04-2014, 01:38 PM | #2 |
Drives: 2012 2SS/RS 6M Join Date: Jun 2012
Location: United States
Posts: 109
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Several things are probably contributing to that odd number. Even a very slight downgrade will help your mileage.
Also, the fuel consumption indicators on basically every car are highly inaccurate. |
05-04-2014, 01:39 PM | #3 |
Drives: Black ZL1 Join Date: Apr 2013
Location: City of Champions, Alabama
Posts: 3,698
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Weather, temp, humidity, wind, all those sorts of things could affect.
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05-04-2014, 01:52 PM | #4 |
Buick 455 Fan
Drives: 1970 Buick, 2012 1SS LS3 Join Date: Jun 2010
Location: Boston MA
Posts: 5,957
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...plus how can you actually duplicate every control input you made? Even if the DIC was 100% accurate, lug the engine by 50 rpm for 10 seconds and then stay in a gear for 100 rpm too many, and there goes your test
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05-04-2014, 01:55 PM | #5 |
Drives: 2010 2LT/RS Black/IOM Join Date: Feb 2011
Location: Kentucky
Posts: 1,434
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In my tractor trailer, if I have good wind, I can make two round trips to Columbus Ohio and back to KY, but even with slight wind against me, makes me lose up to six gallons. I know there's a huge difference between a Camaro and a semi, but just proves the wind hypothesis to this post.
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05-04-2014, 01:57 PM | #6 | |
Buick 455 Fan
Drives: 1970 Buick, 2012 1SS LS3 Join Date: Jun 2010
Location: Boston MA
Posts: 5,957
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Quote:
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05-04-2014, 02:25 PM | #7 |
Drives: 2013 2lt Join Date: Sep 2012
Location: Midland,TX
Posts: 240
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I have a question... How are you getting such high numbers? Are you resetting your average often?
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05-04-2014, 03:47 PM | #8 |
Drives: 2010 SS L99 IOM Join Date: Aug 2012
Location: CA
Posts: 1,924
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My DIC is pretty accurate - it says 19.8 but only cuz I took a trip few days ago. Usually it says 14.ish all city driving and I calculated it the ol fashion way.
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05-04-2014, 03:51 PM | #9 |
Drives: 2010 r/s switchblade metalic Join Date: Oct 2011
Location: United States
Posts: 283
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24 avg mpg llt
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05-04-2014, 06:08 PM | #10 |
Drives: 2015 1SS/RS Join Date: Apr 2013
Location: New York
Posts: 104
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my car doesnt even get close to that? 2013 1LS and I get 28-29 at best at that speed. normally its 26-27
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05-04-2014, 06:23 PM | #11 | |
Doing what I like to do
Drives: 1963 Landrover Join Date: Nov 2013
Location: Almost at the corner !
Posts: 667
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Driving at X speed and push the reset switch , hold the gas pedal steady at the peed you are going on a flat area , bammmm , 60mpg , so freaking what ? |
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05-04-2014, 06:53 PM | #12 |
Drives: 2013 2lt Join Date: Sep 2012
Location: Midland,TX
Posts: 240
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Yeah, that's why I was asking. I haven't reset mine in about a year and I'm getting about 19. Maybe the OP should redo his tests over the course of a week or more and see what different numbers he gets
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05-04-2014, 06:59 PM | #13 |
Drives: 2012 1SS Camaro Convertible Join Date: Sep 2010
Location: Blaine, MN
Posts: 1,674
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One time I left Fargo from my dorm room and borrowed my friends 82 Escort with a 5 speed. With a 40 mpg tailwind I made it the 232 miles using less than a 1/4 tank of gas. Think it equated to 83 mpg
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05-04-2014, 08:00 PM | #14 | |
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Quote:
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