Sign In Join 

You are here: [F] Forums / Sedans / Chevrolet Aveo / Chevrolet Aveo Real World MPG



Chevrolet Aveo Real World MPG

254 messages,  Last post on Sep 29, 2009 at 7:03 PM

You are in the Chevrolet Aveo Forum. Your Hosts are pat & karens

What is this discussion about? Chevrolet Aveo, Fuel Efficiency (MPG), Hatchback, Sedan


Messages Page 17 of 26
1
...
14
15
16
17
18
19
20
...
26
Prev
Next
Last
Go To Msg #
Search This Discussion

#160 of 254
Re: mileage [nordy200] by ilaveo
Aug 03, 2007 (1:40 pm)
Reply

Replying to: nordy200 (Jul 31, 2007 4:10 am)

I haven't had to check out the Aveo's system yet, but as I understand it the computer runs in open loop mode to help warm up the catalytic converter until it reads that temp sensors have hit a preprogrammed "operating temperature". In at least some cars these sensors can provide incorrect readings without making the engine throw a code. If the temperature was read incorrectly low by the computer you might stay in open loop.
 
I have read that you can buy a resistor to make your computer read a higher than actual temperature, so that you exit open loop sooner.
#161 of 254
Re: mileage [ilaveo] by sun44
Aug 03, 2007 (1:49 pm)
Reply

Replying to: ilaveo (Aug 03, 2007 1:40 pm)

I wouldn't even know where to start looking for something like that. I keep hearing that the car's not broken in good yet. When I first got the car, I got good gas mileage, until I'd had it about two weeks, and then it went to pot. No more good gas mileage. I went over 200 miles on my first tank of gas. And I usually buy gas at the same place, or try to. It just makes me sick. I have 2086 miles on this car now. Doesn't make sense to buy a car that you aren't saving gas with. And nobody will give you a good trade in value on them right after you purchase one, so you have to wait till they're almost paid off.
#162 of 254
Re: mileage [ilaveo] by sun44
Aug 03, 2007 (1:50 pm)
Reply

Replying to: ilaveo (Aug 03, 2007 1:40 pm)

I was also given the option of going to the better business bureau..what's the point. They win
#163 of 254
Re: Mileage [sun44] by richard1haines
Aug 04, 2007 (8:25 am)
Reply

Replying to: sun44 (Jul 29, 2007 10:53 am)

I have a new 2007 AVEO RS Sedan that I took delivery on April 28th of this year. The EnerGuide Canadian Fuel Consumption guide lists the fuel consumption figures as:
 
City: 8.9litres/100km or 32 mpg
Highway: 5.9 litres/100km or 48 mpg
 
I have been using The Natural Resources Canada Car Economy Calculator that is free for the asking. I drive on average about 60% on the freeway and 40% city. Using the calculator for the past few months has shown that my AVEO gets on average about 36-40 MPG or 8.1 litres per 100km to 7.0 litres per 100km.
 
I don't understand why I am reading reports of very high fuel consumption. Have you complained to your dealerships and GM that you are getting nowhere near the figures you were expecting?
 
 
#164 of 254
Re: mileage [ilaveo] by nordy200
Aug 05, 2007 (4:21 pm)
Reply

Replying to: ilaveo (Aug 03, 2007 1:40 pm)

"In at least some cars these sensors can provide incorrect readings without making the engine throw a code. If the temperature was read incorrectly low by the computer you might stay in open loop."
 
You are right about this- the computer could think that the engine is always "cold" and would be always enriching the fuel. A competent and thorough tech should check this out for any customer such as sun44 who reports such poor mileage. The car should be left at the dealer overnight and then checked (resistance of the sensor) when first started and then when fully warmed up. Thermostat operation should also be checked to make sure it's closing when needed to make the engine warm up.
#165 of 254
Re: Mileage [richard1haines] by sun44
Aug 05, 2007 (4:31 pm)
Reply

Replying to: richard1haines (Aug 04, 2007 8:25 am)

They put my car on a machine, and told me it was doing fine, and all that blah blah blah..I have called the company, and they told me that the people at the dealership are their eyes and ears, so nothing I say will matter. For all I know they might not even have driven the car, or put it on the computer. You're not allowed in the bay. I've fussed till I'm blue in the face..according to them, there's not a thing wrong with it.
#166 of 254
Re: Mileage [sun44] by nordy200
Aug 06, 2007 (3:25 pm)
Reply

Replying to: sun44 (Aug 05, 2007 4:31 pm)

I suggest that you carefully document first of all, your complaint including actual mpg's with gas receipts, over as long a period as possible, then produce a timeline of all your trips to the dealer including what was written on the service order each time you have dropped the car off and then what was written down on each work order when you picked up the car, and the results of any contact you have had with any corporate office people. In situations like this, documentation is key: get in writing every response from the dealer and every response from the Chevrolet manufacturers rep. Write a clear, dispassionate, and concise letter that includes every single detail of your experience, in a timeline format, with your car and follow the "chain of command" up the corporate ladder. In each written contact that you make always state A) The specific problem you are requesting that they deal with being sure at every step of the way to attach any and all documentation you have, B) Why you have not received satisfaction, per their standards, and C) What type of resolution you are requesting. Send your letter to the dealer first, requesting resolution, then if they do not satisfy you, follow up with the zone office, and whatever the next level contact is.
  Get personal contact info if possible at Chevrolets corporate offices and always, always, always, send letters to them with return receipt requested. There are specific steps to take in these types of disputes and by following their chain of command, you can force their hand and make them deal with the problem, or at least create an evidence trail for the next step.
  Talking on the phone will not produce a paper trail and will get people to do whatever they can to get you off the phone and out of their hair. You can't fuss and you can't rant as that will only create negativity, even if the dealer and Chevrolet totally deserve it. It's too bad that you have to go to a lot of trouble to get this taken care of but if there is indeed a problem with your car, only with adequate documentation will Chevrolet ever do anything for you. The following claims by Chevrolet will surface: it is due to your tire pressure, your driving style, your use of A/C, your driving very short distances on each drive, the fact that you might have an automatic transmission, etc, etc, etc. These are all very valid reasons for mileage to be much lower than expected by you or claimed by Chevrolet. Be prepared for this, provide evidence supporting your position, and do it all in writing.
Good luck and do not give up-they will absolutely try to wear you down!
#167 of 254
40 MPH on my Aveo at 80,000 miles by jayman1967
Aug 15, 2007 (6:39 pm)
Reply
I have a 2005 Aveo with 80,000 miles on it and climbing. I consistantly get 38-42 mph on my 5 speed. What is a amazing about this car is the only thing I have done to it is I changed the front tires at 70,000 miles and the back ones are still going. Next week I have to bring it in to get the alternator belt replaced, I don't trust it with the miles it has on the belt.
 
I drive it 170 miles a day on the highway and plan on driving the car to 300,000 miles which should not take to long.
#168 of 254
Re: 40 MPH on my Aveo at 80,000 miles [jayman1967] by poncho167
Aug 16, 2007 (4:52 am)
Reply

Replying to: jayman1967 (Aug 15, 2007 6:39 pm)

Have you had the timing belt replaced? If not it should be replaced at 60,000 miles. This is common on all Japanese/Korean cars with a rubber belt. Please refer to your manual.
#169 of 254
Re: 40 MPH on my Aveo at 80,000 miles [poncho167] by sun44
Aug 16, 2007 (7:46 am)
Reply

Replying to: poncho167 (Aug 16, 2007 4:52 am)

My car's new..only 2000 something miles on it. It's been this way from day one, and everything on it's new. If it doesn't improve by 5000 I'm reporting it to the BBB. It has auto transmission, and a/c, not standard. I have no idea what to do other than wait the two to three years and get rid of it. Maybe by next year, they'll have something out there they can stand behind, and be honest about. I won't be buying another chevrolet.

Messages Page 17 of 26
1
...
14
15
16
17
18
19
20
...
26
Prev
Next
Last
Go To Msg #
Search This Discussion
To POST a message, please Sign In.

You are here: [F] Forums / Sedans / Chevrolet Aveo / Chevrolet Aveo Real World MPG

New? Join Now!

Forum Tools

Please sign in.
Email Address:

Password:

Forgot Password?

Search Forums

Enter Keyword(s)

Advanced Search

Browse by Vehicle



View All Vehicles
Advertisement
Learn More

2010 Chevrolet Aveo

2009 Chevrolet Aveo 5 2LT Hatchback Shown

More Pictures

DoMore

Ask the Community
See What People Are Asking

Browse by Board

Browse by Topic


View All Topics

Today's Chats

Advertisement