Official: What are your real world MPG Numbers

[madmac555]

I've been rocking mid to low 30mpgs this winter. It's disappointing but a fact of cold temps and winter gas, I'm not helping either letting the car warm up 10 mins at a time

I just want summer back so I can try to break 60 mpg on a tank.

I've got up to 60s on a road trip last summer. Hoping this summer I get better with the aero mods.

Third pedal for life!

 

[SouthFLSonic]

I've got up to 60s on a road trip last summer. Hoping this summer I get better with the aero mods.

Third pedal for life!

You averaged 60 MPG for an entire tank without resetting the DIC??

What aero mods are your looking to do/did also?

 

[madmac555]

Most of it was driving style. But so far I have a custom belly pan. Lowered it with springs. Minor weight reduction. Will be doing the rest of the belly pan soon. Looking into doing a mirror delete and adding camera's in place and gap sealing.

Third pedal for life!

 

[madmac555]

Yes. Filled the car. Reset trip and average economy. Drove to where I was going and it was reading 63mpg on the dash. East Houston to San marcos. Used right at 3 gallons (filled up once I got there to see)

Third pedal for life!

 

[Lyonx]

2013 1.4L 6Spd MT hatch: 38 mpg combined, easily

 

[SuperFudd]

1.8L automatic (see below).
Drove 14.5 miles from my home in Union City CA to a job interview in Milpitas and got 42 mpg on the DIC. I reset it after backing out of the driveway.
I live .5 miles from the 880 on ramp. Destination was ~.5 miles from the off ramp. ~60mph on 880.
On the way home I also got 42 mpg with minimal traffic congestion.
Once I get re-employed (soon?) and start commuting again, I will compare the DIC to refueling calculations but not yet.

 

[joe truck driver]

spring hope or hopeless

I've been rocking mid to low 30mpgs this winter. It's disappointing but a fact of cold temps and winter gas, I'm not helping either letting the car warm up 10 mins at a time

I just want summer back so I can try to break 60 mpg on a tank.

I didn't remember you having great numbers during the contest...

my numbers are about the same ....maybe a little higher. flipped 71,000 and the outside temp went up a little on this last tank and it looks like I will have a 40mpg tank. can't bring myself to enter my fuel receipt from the winter yet.
can't tell if the new trans has had any affect yet, but it doesn't seem to have. going in for my oil change today and will have alignment checked just to see if the frame settled after the transectomean...

 

[Maddog2020]

I was just in the Florida Keys for 11 days. I filled up and after about 50 miles I was at 60 MPG. Then I was in Key West which is all stop and go traffic. I took the picture below after about 150 miles and managed to get it back to 54 MPG. I'm stock with just a tune and I was running the tune set for stock mode.

I know if I would have been able to do the 45 to 55 MPH speed limit with almost no stops (most of the keys are like this), I could have done 60 MPG for the entire tank. In Michigan I average around 40 MPG. My previous record was 51 MPG on the DIC and I was in the Keys then too.

 

[Scott D]

I just got a 2014 sonic hatch 1.8 5 speed. Seems to get terrible gas mileage. Question. What is the tach supposed to read going 100k. Or 60mph in 5th gear. Mine is spinning 2500rpm. Seems really high. My other cars spin 21 or 2200 rpm max at 100k.

 

[Scott D]

Also was just reading the 5 speed has overdrive gear. Does this overdrive gear engage automatically or is there a button to engage it? I don't feel it engaging atall if it's automatic. Maybe this is why it spins 2500rpm at 100k in 5th gear!?

 

[SuperFudd]

My LT automatic (see below) at 60 mph spins ~2100-2200 rpm.

 

[sx sonic]

An overdrive gear simply means the gear ratio is lower than a 1 to 1 ratio (1st for instance has a very high ratio of say 16 to 1).

I haven't looked at the 1.8 trans ratios but 5th is definitely your overdrive gear and 4th is possibly an overdrive gear, no need to do anything other than shift, because manual. On the non RS 6sp manuals we have 3 overdrive gears (4th, 5th, 6th).


Check the link in my sig for mpg tips

 

[dbarrett231]

I get 22.9 in my RS. But that's stock tires in Alaska on ice and all city driving


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[Scott D]

Oh ok, thats what they mean by overdrive. Lol. I thought there was a seperate button for it that will drop the rpms down when cruising. Thanks for clarifying that. I think the auto spins 21 or 2200 because it has a 6 speed gearbox. Maybe 2500 is normal for a 5 speed!? I should of sprung for the 6 speed manual.

 

[Sonicpizza]

Y'all are making me jealous with these numbers.....even when I reset it starts at like 33 then drops to 27-30 and I drive 60ish miles a day mostly highway...sucks

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[garden.f]

Bad MPG LTZ AT 6-speed

Guys,

I have a Sonic LTZ Sedan, automatic, 6-speed, 1.6 flex (same engine of Cruze 1.8 flex, downsized). It runs 16mpg in city and 25mpg at highway filled with gasoline.
I know the gas quality is not so good in Brazil, it has 30% of ethanol (and if I fill the tank with 100% ethanol, it makes 11mpg.)
The user manual states that Sonic filled with gas makes 21mpg in the city and filled with ethanol, 16mpg.

Chevrolet does not take responsibility for that. Have anyone some tip or trick?

Thank you.

 

[sx sonic]

Look up 3 post and you'll find where to get mpg tips.........

 

[ChicksHateMe]

I just hit 500 miles today.

First tank was free, and I didn't think to get gallons put in from dealer or to reset it. The calculated climbed fast from 14 MPG (Dealer lot driving) to about 28 MPG.

Only on 2nd tank now. It started showing around 35 calculated, but has dropped to 29. I just can't help it. Every once in a while I just have to feel the power of the Turbo

When I fill up soon, I will be able to get a real value and compare.

Now that I passed 500 miles break-in, I think I am gonna treat her a lil rough and see how BAD a MPG I can get. That way I can watch the MPG's go up from there.

 

[Trevinator]

I consistently see 26.6 mpg on my 1.4T with the 6 speed manual, but that's almost all city driving and I'm not babying it. I can see around 29 in the city if I drive conservatively, but what fun is that? Even at 26mpg, that's still a heck of alot better than the 10 mpg I was getting in my truck.

 

[xupthree60]

I just want to throw in that me and my wife share our 1.8 5sp manual and we average 33 to 34 without really trying. I downshift and drive spirited through the corners but try to keep it under 70. 3k rpm at 70 is ridiculous. I feel like the 1.4 only gets better millage because it has a 6th gear

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