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Sedans Chevrolet Cobalt Chevrolet Cobalt Real World MPG
295 messages, Last post on Nov 23, 2009 at 4:23 PM
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Replying to: tsjay (Sep 30, 2008 5:57 am) |
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I got 28.8 MPG on my last fill-up for my regular driving. Tom |
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I took a 265 mile (each way) trip yesterday and checked gas mileage. The pump failed to shut off automatically when I filled up on the other end of the trip, and a good amount of gas overflowed before I could get back over to the nozzle and shut it off. I was on the other side of the car getting ready to clean the windshield when I heard the splashing noise. The last time I made the same trip, I averaged 33.7 MPG. I did a little experiment as I drove across I 64 in southern Illinois between the Wabash River and Mt. Vernon. I reset the average MPG on the DIC and drove a steady 70 MPG for 15 miles, and the MPG reading was 32.7 at the end of those miles. I reset it again and drove a steady 60 MPH for about ten miles (had to stop at a rest area) and got 37.5 for an average MPG for those miles. Tom
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I have an 08 Cobalt coupe XFE. The car has 4500 miles on it and the mileage has been about the same for me since mile 1. I get about 30 City and 38 Highway. I got 42 on an 90 mile trip but only once. Most of my driving is mixed so I generally get 34 tank to tank. I calculate mileage manually and use the DIC and find that my calculation is ususally within 0.5 mpg but the DIC has displayed as much as 3 mpg lower. Probably due to where I stopped when I fill. Ben
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Replying to: powderkegg (Oct 06, 2008 7:41 am) Your DIC reading is always based on your last hour of driving. So if you did lots of "stop and go" during that last hours it goes down.
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Replying to: grosloup (Oct 06, 2008 9:31 am) Your DIC reading is always based on your last hour of driving. So if you did lots of "stop and go" during that last hours it goes down." I didn't know that! That's good to know, but I would prefer that it just kept averaging from the last time it was reset. Thanks. Tom |
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Replying to: tsjay (Oct 05, 2008 4:26 am) Horsey 
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Replying to: horsey55 (Oct 06, 2008 4:52 pm) You should be a happy camper to be getting that kind of mileage. I have to admit that it was a little hard to believe at first. Tomster |
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Weather has cooled off, so the engine is running cold for a longer time on start-ups. I guess that would explain the slight drop in MPG. Stupid coal trucks! I got behind one this AM on my way to work and heard some fine particles hitting my car. When I got to work and looked at the front end of my car, there were fine particles of wet coal dust. I went to a touchless car wash that probably stripped off the nice coat of wax that I had just put on my Cobalt a couple weeks ago.  I should have known better than to get that close to the back of a coal truck, but I was intending to pass him. It was the two lane road that I travel every day on the way to work. I'll just stay back and not try to pass next time. Tom |
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Very happy with that mileage. This was my usual mix of driving, two lane rural roads with hills, curves, and three stop signs before reaching the town where I work, some miles in town at lunch time, and then the drive back home in the evening. No bumper to bumper city driving, but no interstate cruising, either. Tom |
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