For those of you who are interested.
http://www.petitiononline.com/aveompg/petition.html
probably wont do much, but i'm tired no one caring or listening about our complaints. Please feel free to sign if you are so inclined
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For those of you who are interested.
http://www.petitiononline.com/aveompg/petition.html
probably wont do much, but i'm tired no one caring or listening about our complaints. Please feel free to sign if you are so inclined
you should really check out other b-segment car forums...they are getting the same mpg as we are....what mpg are you getting?
I can't complain. I do over 40mpg(Imperial 1Gallon = 1.2US Gallon) at 70mph.
doesnt anybody know? online petitions dont do a dogon thing!!! and besides the MPG are ESTIMATES, so that means 36 mpg highway and 26 in the city would be under PERFECT road conditions, i.e no turns, no slowing down or speeding up, just one speed all the time without stopping. So even though our cars dont actually get that mileage because we dont drive under "perfect" road conditions, it is mentioned on the window sticker that you mileage WILL VARY.
Actually the road test is at an average 50mph with a top speed of 60. The speed does vary but the test reflects going through villages...not actual highway speeds.Quote:
Originally Posted by khan4rtist
Yes they are estimates. People need to realize that 36mpg also has a statistical interval. Even if you go to the dealership and they test the vehicle, if your's is in the interval, there is nothing wrong with your car. Since the EPA test only a few engines, the interval can be quite wide.
well its great for you that are actually getting that mileage... but when i get 26mpg going hwy. or 19mpg city i get a bit frustrated. Its great that you are getting great mileage, but i'm not and you don't have to be rude about it.
hey im there with you frog! i guess we got lucky on our MPG ;)
I try never to be rude, sorry if I sounded like I was. I was just saying because not many engines were tested, the estimates might be off by quite a lot. Like ave0sam said, it's a problem with all b-segment cars, not just the aveos.Quote:
Originally Posted by toomuchrock
I know that the 2007's in Canada are rated 48mpg and mine is rated for 46 (2006)...I don't know where the extra 2mpg came from. ECU upgrade maybe.
then there is something wrong with your car or how you are driving it...im just saying its not all aveos that have your problem....its just like when two people had their tranny mounts break, they the owners thought it was a problem with all of them but in reality it was just a bad apple....
too many bad apples if u ask me, lol, i also get crappy mileage, really crappy 17-20 mpg city
You can't be tracking it right. There's no possible way a 1.6l gets 17mpg unless there's a huge problem with the fuel injection system.
Or driving stupid hardQuote:
Originally Posted by exodus
who are you to say they aren't tracking it right?Quote:
Originally Posted by exodus
It doesn't take a rocket scientist to calculate gas mileage. I've seen at least 5 people of various websties complaining of the exact same gas mileage.
An ECU re-learn should fix the problem. It sounds like it's running pig rich for no reason. There is no reason it should be running like that, so it's an error with calculation or an electrical error.
i dont think im doing it wrong.....ususally i go about 260 miles on one tank, thats not much, but then again i do drive freeways and streets combined which is really bad for mileage
lol yea subachad was getting 17 mpg at the track
I'd say there's a huge difference between driving on the track and driving in the city. I don't care how hard anyone says they "push it."Quote:
Originally Posted by AVE0SAM
i was agreeing with you that there is no way you can be getting 17 mpg daily driving when you get 17 mpg at the trackQuote:
Originally Posted by exodus
:thumbup:
whatever suggestions you have for fixing it kindly tell gm, because they will not listen to me/
Really, though, what do you think are they going to do? They have EPA fuel economy ratings that say XX mpg city/XX mpg highway and say that they're fine and competitive. Everyone and their dog knows that these ratings don't come close to real world figures. Everyone's mileage will be different based on who/what/when/where/why/how.Quote:
Originally Posted by toomuchrock
I get crappy economy, nothing less than in the 20s mpg range, though. I do a short (<5 mile) commute to work, twice a day, so I chalked up the crappy fuel economy, between 21 and 23 mpg, to the short hauls.
However, since my ECM died and I got it replaced, I'm getting about 30 mpg so far, so my crappy mileage may have been a faulty computer from the get-go. We'll see...
BTW- the 48 mpg rating listed in Canada is in IMPERIAL gallons, which is about a US quart larger than a US gallon. So the 32/48 Imperial gallons translates to 26 city/40 highway in US gallons.
my commute is about 13 miles, just about half and half are freeway and city miles, and i never said i got 17mpg all the time, it has only happend once, the rest of the time im getting around 20-22mpg
Can you describe your method of calculating?
I use a program on a Palm Pilot an I get milage to the tenth.
Lately I'm down to 28mpg, but I've been getting 30mpg usually with a best of 32. (seems to like summer better).
at 260 miles what the actual amount of gas you add to fill back up? not the dollar amount but the volume.
The thing with the low gas mileage claims is...the gas has to go somewhere
there's no way gas can escape without leaving tell tale signs.
See, an engine cant just eat up a ton more gas just like a person cant eat unlimited food. your stomach is only so big, so is the combustion chamer.
The gas either has to leak out of the vehicle..You'd smell it when parked and likely get a cel from the computer sensing a difference in the way the tank is venting due to a leak.
Or Your injectors are spraying more fuel into you combustion chambers than other aveo's.
In this case, you would still see traces of the wasted fuel as black soot and smoke from the tail pipe.
It will dirty the rear bumper quick.
You should be able to see it an acceleration in your mirror, or have someone behind you verify that your car lets out a dark black (not blue or white) cloud of smoke on acceleration.
Your car will also feel down on power and again you'd likely be running a cell too since the exhaust pollutants would be through the roof.
im calculating mine this week...i go to fill the car up tomrrow to see how much gas i used...i was going to try and be conservative on the pedal but that lasted for two days before i got bored lol
sorry, but your reasoning is incorrect on so many levels...Quote:
Originally Posted by Aveo_SS
Or not... :roll:Quote:
Originally Posted by mtlswift
well i just filled up 2 days ago, 25 bucks, ill drive easy, lets see how many miles i get out of it.....
25 bucks? how much is gas where you live?
$2.23Quote:
Originally Posted by AVE0SAM
WOW... it's $1.80 here
ours just got under 2dollars this week...
[quote=Audacity Racing]Or not... :roll:[/quote:2u4dqvcb]Quote:
Originally Posted by mtlswift
First of all, OBDII systems won't let your car get away with pushing out a lot of unburnt fuel. Either the ECM will compensate, or you'll get a CEL long before you notice you have poor gas mileage. Size of a combustion chamber has nothing to do with it. If it did, by the above logic, every car with a 1.6L displacement would burn the same amount of fuel. If you have denser air, it can accomodate more fuel.
There could be a leak in the fuel system, but if it's downstream of the pump, again, it should set off a CEL. If it's upstream, you should more evap on hot days and your mileage should suffer more when it's hot, but again, you should get a CEL, cuz the evaporative emissions sensors are sensitive enough to notice a small leak due to a loose gas cap.
What should you check for? Clean air filter, good tire pressure. Then work out from there e.g. spark plugs etc.
Driver and driving habits play a huge factor in mileage. Does he have a lead foot? do high revs? Lots of stop and go? Distance travelled? weather, altitude, type of roads all play a factor. Auto vs manual tranny.
So yes, one engine can eat up a lot more gas than another one.
The big deal is this though, in city driving you don't reach closed loop... your car reads off a map. If there is a problem with the fuel system, it's not compensated for while the O2 sensor heats up. No CEL would be thrown.
Furthermore, ODBII systems will do whatever the map or sensors tell them to. If a sensor was faulty, it could pour the whole tank in the engine in a single duty cycle if the ECU felt like it. O2 sensors don't see fuel, they see temperature. You could easily be dumping fuel in the exhaust.
Also, the pressure port on the Daewoo fuel rails are notorious for leaking fuel... and there is no flow regulator on the fuel system... the ECU would have no problem with the fuel rail spitting gasoline out. The pressure is not drastically low, but the flow is high... well within operating specs.
I agree the combustion chamber size has nothing to do with it, but the context he used it in made sense. On an extreme case, you'd hydrolock from gasoline, but as far as volume goes you can only put so much in.
WTF, STUPID CALIFORNIAQuote:
Originally Posted by Audacity Racing
they actually read O2 conc out of total exhaust mixture. By a chemical rxn it produces a voltage. to get accurate values, they need to be warmed up, but that's easily achieved after a few minutes. If you're blowing rich, rich enough to drop mpg from 30 to 20, it's gotta sense low o2 conc. If not, then fuel economy is the least of the problems.Quote:
Originally Posted by Audacity Racing
24.403061807380326745115960242203 mpg is what i got this week :lol: i think its time to fix my o2 sensor and get a new filter or clean my old one....also note i have an auto and its been really cold lately so because i have yet to find or remember to plug the engine block heater in, i let it run for 10-15 mins to warm up....and even then the tranny is still too cold to want to shift out of 3rd or 2nd sometimes, so sometimes im riding for a bit at above 3000rpms..so this all adds into the bad mpg
I wounder if your odometer is out of wack. See if you can borrow a GPS and verify your speedo system. It would be great if it were that easy.Quote:
Originally Posted by toomuchrock
My Aveo gets around the same mileage. I dont measure the MPG using some silly equation...I wasnt even that good in math. I reset both my trip odometers every single time I fuel up. I have run around the city, and even making it to one other side of the city will take the fuel gage down. I can run it to empty, and the trip will read around 260 to 280. I am do drive it like a sports car and I am pretty happy with it. As they all said...MPGs are just estimates. I think it even says on the sticker "These figure may vary."
An online petition will not do anything about the MPG in our cars...what direct connection does it have? Absolutely nothing.
block heater plug right beside battery rolled up with a tie wrap if you have one.Quote:
Originally Posted by AVE0SAM
this topic looks dead
but I got a 2005 Wave with 47,000 km and my MPG sucks (23mpg mostly hwy!!) ....I also have a 2003 grand am Gt and it gets better gas mileage ...it has a larger tank but I write down my figures and it works out to be better under the same conditions to and from work ...
my step brother has a 2007 wave and he gets great mpg as we work out his results
The engine is in great shape and has always had regular maintence from the previous owner ect...
you will see my other post i was looking for the fuel filter only to find out its in the tank! :(...
i also checked and changed the spark plugs, air filter and i threw some injector cleaner in the tank for the hell of it