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Stock LS3, What's Your Average MPG?

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Old 06-16-2018, 06:43 PM
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techmonkey
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Default Stock LS3, What's Your Average MPG?

I've got a stock 2012 GS and getting 20.0 average MPG. I know this can vary wildly based on your driving habits and location but what are you getting?
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Old 06-16-2018, 07:46 PM
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BadAV
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Most of my driving is relatively short trips in town, with traffic and traffic lights. I average somewhere between 19-20 mpg in these conditions. I have an automatic.
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Old 06-16-2018, 08:12 PM
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NY09C6
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18 mpg but I do not drive easy and posted highway speed limits are 70-75 mostly.
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Old 06-16-2018, 08:37 PM
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I daily and my commute is about an hour one way 60/40 highway/city.
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Old 06-16-2018, 09:02 PM
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Oh Boy
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To me this is real world city driving at which if anybody claims more than 10-12mpg is total BS.

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Old 06-16-2018, 09:15 PM
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Stock LS2, A6, most trips are 6 miles and back but some longer, most tanks are right around 20 - 20.5 MPG.

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Old 06-16-2018, 09:23 PM
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4 years of avg. driving, some of this and some of that*** 20.6mpg Don't really care, first time I looked it up
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Old 06-16-2018, 09:36 PM
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Manual GS, most tanks are 20 - 22 mpg. Can get high 20's if on long trips and keeping speeds lower.
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Old 06-16-2018, 09:37 PM
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To be honest, I never looked or cared.
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Old 06-16-2018, 09:49 PM
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I can probably get 19 or 20, I can tell you that the MPG is lower than I expected. It's quite a bit lower than my LS6 car when I had it.
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Old 06-16-2018, 10:27 PM
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When I am really careful, I might get 18 in all-city driving. But, I love what the car offers, so normally get around 14. It doesn't bother me a bit because I know it is my fault.
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Old 06-16-2018, 10:29 PM
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In the 07 its around 18 in town.
Highway I averaged 27.4 from San Antonio to Joplin Mo. Average speed was 72mph for that trip. lol
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Old 06-16-2018, 10:48 PM
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My mixed after 7k miles of 50/50 city and highway is 20.6. I drive pretty aggressive, hit bumper to bumper traffic for ~30-45mins daily, and don't monitor or even care about the mpg to be honest.

On the highway it maintains 29-30mpg @ ~80mph on flat roads. Stop and go traffic is a killer though.

Seems like the MPG sweet spot in these cars is at quite a bit higher speed than most vehicles that like 55-60.
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Old 06-16-2018, 11:33 PM
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I don't really care much either just better than expected. I guess the highway miles tend to even out my lack of control (more frequently than I care to admit) and the city driving.
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Old 06-16-2018, 11:37 PM
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Originally Posted by Oh Boy View Post
To me this is real world city driving at which if anybody claims more than 10-12mpg is total BS.

To me, that's not city it's gridlock. In this day we almost need another category for mpg estimates. highway/city/gridlock.
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Old 06-16-2018, 11:45 PM
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The gridlock in my neighborhood really sucks . . .


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Old 06-17-2018, 07:31 AM
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I have put 1,100 miles on my automatic LS3 since buying it last winter. I set the computer to zero and right now my average mpg is 22.9 with mostly highway type mileage. I live in a rural mountainous area with minimal traffic lights.
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Old 06-17-2018, 07:47 AM
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16 in real traffic, 25+ on non-traffic highways.
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Old 06-17-2018, 08:17 AM
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I must drive way too easy. My computer says 25.6 avg for the 3500 miles I have owned it. I do live in the country, avoid the city. 09 stick
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Old 06-17-2018, 08:33 AM
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16 to 17. and I drive easy and run 100% gas. the real gas nets me about 1 mpg more than ethanol.
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