[Koldunic]

17 MPG with my ZL1. Mix of highway and towns. Currently at 172 miles. Lol

[bigd1276]

2017 2SS M6 18 MPG
3600 miles purely pleasure.

[HighIron]

1SS M6, 3,300 and change miles.



My "Trip A" has not yet been reset....so lifetime average is 23.1 MPG, Avg speed 41 MPH.


The "My Cheverolet" app shows my round trips to work and back as follows, and they're remarkably consistent, and includes a few hard/hard-ish pulls of acceleration:


53 mile R/T
Avg speed 51 mph
MPG 25 to 26


My weekends are shorter trips with more stop & go driving, so it adversely affects the weekly average.



Last "Trip B" before reset was about 1500 miles showed 23.8 MPG. I was doing good before an epic traffic jam screwed up my rally.

[mdhopt36]

Last 400 miles, about 30.4mpg.
Lifetime (~5000mi.) around 26.7.
55-60mph is about 33.1
75-90mph (!!) around 27, go figure that one.
When I bought it, the "lifetime" showed 8MPG, with a bit over 100 miles on it. Salesmen musta been hard on it.
Engine and pumpkin oils have been changed at least twice for break-in.
Going from 93 to 91 octane drops MPG about 1mpg. Running AC drops it about .5mpg, approximately.
2018 1SS.
At a stop, with it warmed up, in neutral and no AC, the car lopes slightly as if it was cammed. Anyone else notice that?

[ZED SLED]

LT4 - Absolutely no idea.

[RickErnst]

'17 2LT V6 Vert

~6,200 miles

lifetime avg of ~21
single tank high if 27.6

[jreagle56]

2016 SS LT1 M6 lifetime gas mileage after 22,000 miles = 18.4 mpg
no short shifting; shift point near 2.5k- 3k rpm or above.

[Bassment]

18.2 mpg lifetime

[Cheekster96]

Averaged almost 27mpg on a mostly Turnpike drive doing 72mph for most of the way on a 96 mile trip.

Just under 800 miles now on her! Love that six speed! '18 2SS

[Frankie18SS]

Originally Posted by ZED SLED

LT4 - Absolutely no idea.

[Frankie18SS]

6.2 6MN

~2700 miles total, lifetime combined average is 22.1 mpg w/ Avg. Speed at 35 mph

[S2K+1LE]

Originally Posted by dfwcowboy

The computer is only going to be as accurate as the fuel transducer's calibration which is inevitably going to have an error. The average mph also doesn't really tell the whole tale as far as fuel consumption goes. Given that driving methods and conditions are going to have the greatest impact on fuel economy, I just thought what the computer is saying is probably going to provide the most objective information we can use to compare one with another. Someone who averages 10mph shouldn't expect the same fuel consumption as someone who averages 50mph.

The thread was calling for the MPG and engine type, though. Sure the MPH has plenty to do with it, as does the gearing/transmission type/tire sizes and spec/etc, but... averages are averages.

[ninetres]

LT4, 3600miles, 99.9% city. 16.Xmpg.

[Camarolover85]

Originally Posted by dfwcowboy

Someone else asked if their fuel economy was off and I thought it might be a good idea to have a reference of what everyone is getting. Maybe this has been done before, but I couldn't find it.


Personally I'm getting 21.3 mpg @ 29mph for the LGX(V6). I figure I'll probably average around 10,000mi per year so at $3 per gal I can figure on roughly $1400 per year in fuel costs.

21mpg in a V6? Do you floor it from every stop light? Mine is somewhere between 25-26.