Official: What are your real world MPG Numbers
- Thread starter Sonic-Mike
- Start date
sx sonic
New member
last fill up 39.9 ACTUAL. high point of 51.6 on gauge after 30 miles on expressway. start up next day lose 7 by end of side street and down to 45 on expressway leg 2. by 4th leg, down to 42 and up to 43 at fill up at finish leg 6(39.9 actually).
heard tune bypass will void warranty but new air intake will not. any truth to this?? :blankface:
Nice mileage Joe.
What do you mean by "tune bypass"? If you're just talking about tuning the car, then yes it technically voids your warranty. With Trifecta's transparency mode the dealership will not be able to detect the tune even if its loaded on to the ECM. Most of us just flash back to the "stock" program (included with tune) when we take it in for service and then flash the tune back in afterwards...
So if thats what you're talking about, yes it voids the warranty but they have to catch you and trifecta made their tune invisible to GM (save for the engineers if they started rooting around but why would they).
Intake can technically void the warranty as well, but it is rare for a dealership to make much of a fuss about it. also if there is an engine failure then the dealership/GM would have to show proof that the modification caused the failure.
Turbo Lover
New member
No, I posted the picture to troll you guys
That was actually the mileage I got doing a Sunday paper delivery route, and then driving around town the next day. I filled up before and reset the MPG readout and by the time I got done, it was at 14.6 :\ It takes 3 hours to drive 16 miles. This is why you stay in school, kids No but seriously it's an easy way to bank an extra 800-1000 bucks a month.I'm getting 36.4 average according to the instrument panel. My commute is 75 miles one way and I go to and from San Diego. So, 150 miles round trip 90% freeway at 80 Mph whenever possible. Usually there are at least two slows to a dead stop going to or from. So, possibly crawling speed for about 12 miles of the 150 miles four times. i have never reset the MPG gauge since buying the car a few weeks ago. 1.8L engine manual trans - sedan trim.
Turbo Lover
New member
34 degrees, driving 55 the first half of the way, then 50 the second half of my daily trip (doing whatever the speed limit is). Can't wait to see what it is this summer, it is already about 1.5 MPG better than it was when it was a bit colder the last time I got gas after leaving home for work. I may try 50/45 or 60/55 speeds next time if the temperature is comparable, to see how much of a difference ambient temperature makes on a pretty much warmed up engine driving the exact same route.
Update: 11500 miles now on the odo. Lifetime indicated is at 45.8 on the EIC.
So I've had my Sonic 1.4 M6 for a little over 3 months...
6754 miles with lifetime MPG 47 (Onstar remote link)
I do drive conservatively and use some hyper-miler strategy when I will not be impeding other drivers. My daily commute is 25 miles to work on rural flat roads with about 5 mi. city.
Tires @ 40 psi.
I do short shift so I'm in 6th at about 45 when traffic allows.
Only use 87 octane.
No tune yet
The Sonic is an absolutely great car for what it is... a small comfortable car with great gas mileage.
So I've had my Sonic 1.4 M6 for a little over 3 months...
6754 miles with lifetime MPG 47 (Onstar remote link)
I do drive conservatively and use some hyper-miler strategy when I will not be impeding other drivers. My daily commute is 25 miles to work on rural flat roads with about 5 mi. city.
Tires @ 40 psi.
I do short shift so I'm in 6th at about 45 when traffic allows.
Only use 87 octane.
No tune yet
The Sonic is an absolutely great car for what it is... a small comfortable car with great gas mileage.
43 mpg
New to this site and new Sonic owner. I bought my sonic mostly to commute 40 miles each way for work. So far have had it for a month and put 2300 miles on it. Averaging 43.4 mpg. And that is by me taking mileage driven by gallons used to fill up. Meter on dash says 48 mpg. 1,4t 6-speed manual sedan
New to this site and new Sonic owner. I bought my sonic mostly to commute 40 miles each way for work. So far have had it for a month and put 2300 miles on it. Averaging 43.4 mpg. And that is by me taking mileage driven by gallons used to fill up. Meter on dash says 48 mpg. 1,4t 6-speed manual sedan
AdorableKaren
Asian Elite
Ha I wanna race you if that's your mpg on the race track
I'm over 6k with 27.1mpg
I swear it's been stuck on this since I got the car
sx sonic
New member
Ha I wanna race you if that's your mpg on the race track
I'm over 6k with 27.1mpg
Lol, there have been a few people that have autocrossed their sonics and one of them posted a 20-something MPG after a track day.
Have you reset your DIC? The more miles on it the slower it is to respond to any change.
This tank I'm at 50.6mpg DIC over 400 miles, still got 100 mi to empty. Its been a very LONG and SLOW tank. I still haven't broken 65 mph lol.
JKRAWLER- welcome and nice mileage! Your MPG is only going to go up as the engine breaks in.
-tyler
Macehammer
New member
My 'Lo' just came on, I'm at 376miles. 36.4mpg. RS Auto.
ScooterMcTavish
New member
Driving like a granny, weather been chilly here, mileage still under 30 mpg on a 80% highway drive going 60.
Still performing 20% under EPA with a very conservative driving style. For my US friends, my average MPG is 26.4.
Got better mileage in my 95 Neon with a 2L and 3 speed auto going 75. Not that impressed GM. Just over 2400 miles.
Still performing 20% under EPA with a very conservative driving style. For my US friends, my average MPG is 26.4.
Got better mileage in my 95 Neon with a 2L and 3 speed auto going 75. Not that impressed GM. Just over 2400 miles.
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GeneralZod
New member
If you would like, submit your MPG stats in the MPG competition. We are using it to compare many different variables and how that effects the sonic. It is a sticky.
Blue hedgehog
New member
Ok I've read the 1st 300+ posts on this thread. A lot of people are claiming to get 40-57 mpg. I have a 1.4t LTZ with an automatic (I'm starting to regret not getting the manual). I have my tires at 40 psi and have tried sissy footing it so the tranny shifts at 2000 rpm. I have also gone an entire tank without touching the brake above 10-15 mph (I hate driving like that) just to try and get to the high 30's. my commute is about 30% city and 70% highway at 55-60mph (also hate being the slow car on the highway). After all of these techniques combined my best calculated mpg is 30.9 with a lifetime calculated of 27.5. It has been getting better by .7 mpg per month and I now have 6000 miles. Any suggestions to get better milage besides trading in for a manual would be greatly apreciated. By the way here in NY all gas is min 10% ethanol doesn't matter what brand or grade. I have also tried 93 for 3 tanks and found with the exact driving style I get 3 mpg less.
Edit: I live on Long Island and about 90% of my driving is flat ground
Edit: I live on Long Island and about 90% of my driving is flat ground
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GeneralZod
New member
Check your spark plus gap.
You also live in a high traffic area. The LIE and Belt Parkway while highways can be like city driving.
With the temps we are having you won't be seeing too much north of 35 mpg.
Your commute and environment really dictate what you will get. I have an auto LTZ. You are still breaking in also.
You also live in a high traffic area. The LIE and Belt Parkway while highways can be like city driving.
With the temps we are having you won't be seeing too much north of 35 mpg.
Your commute and environment really dictate what you will get. I have an auto LTZ. You are still breaking in also.
Joyride
New member
I'm amazed at the mpg difference between the manual and automatic transmission. When I bought my auto I knew there would be a slight difference but the numbers I'm seeing here is just crazy.
In mixed driving around town and hwy commuting at about 65-70 mph I'm getting just a hair over 29 mpg. I don't drive or accelerate aggressively and car is generally stock other than K&N drop in and cat back exhaust. But I'm curious to see what kind of mileage people with a manual are getting in similar driving to mine. Anybody?
In mixed driving around town and hwy commuting at about 65-70 mph I'm getting just a hair over 29 mpg. I don't drive or accelerate aggressively and car is generally stock other than K&N drop in and cat back exhaust. But I'm curious to see what kind of mileage people with a manual are getting in similar driving to mine. Anybody?
Blue hedgehog
New member
If you're familiar with LI I live in western Suffolk county and work in eastern Suffolk so I'm going opposite the typical NY traffic. The average speed of cars on the highway with me on my commute is about 70mph. When I don't care about saving gas the slowest I go on the highway is 60 and that's only because of the exit/entrance ramps.
Edit: I have heard of people saying to re gap the plugs but to what gap? Are they improperly gapped from the factory and just need to be set to spec? Or is there another spec to help with gas milage/performance?
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Stew
Sedans Rule!
This has been discussed extensively over on cruzetalk, there are a LOT of pages but some good info there if you read through it. It got me curious enough to pull my plugs and check, mine were .024 .025 .025 .024 and I opened them up slightly to .030 but haven't noticed any difference in fuel economy or performance.
Are Your Spark Plugs Gapped Incorrectly?