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Chevrolet Impala Real World MPG

117 messages,  Last post on Apr 15, 2009 at 11:28 AM

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

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#9 of 117 Re: MPG on 2003-04 Impala ? [michel4] by 55ford Dec 14, 2005 (2:04 pm)
Replying to: michel4 (Jul 21, 2005 7:14 pm) I bought a 2004 Impala with 8100 miles on the odometer in Oct 2004. Engine is the "base V-6" (3.4 liter). In my case I get no where near the EPA rating (no surprise there) which is 21 city and 32 highway. City driving gets me only 16-18 mpg and so far one trip has given a high of 26.3 mpg, however to be fair, most of that was mountainous with many upgrades and downgrades, so the tranny was shifting up and down most of the way. I am, therefore, assuming a trip across level interstates might return a 28-30 figure, but that is only an assumption at this point. So far the car has been reliable, has good performance and is smooth and quiet. I carry 32 psi in the tires, and change oil and filter at 3,000 mile intervals. My use of gasoline is generally wherever the price is lowest and I have noticed NO difference in performance or mileage regardless of the brand of gas (always 87 octane) used. It's a good car, but if mileage is important I'd consider the Malibu which is lighter and more fuel efficient. (I also understand the Malibu V-6 gets better mileage than its 4 cylinder counterpart).
#10 of 117 Real World Mileage for 06 3.9 3LT or LTZ by jfcnet Feb 18, 2006 (11:11 am)
Howdy, I'm in the market for a new Car. I tend to buy the engine first. I currently own a 2001 pontiac Grand prix GT. I has the 3.8 L 90 deg. V6. In the real world I get about 23 city and about 28 hwy. I love this car, It is a great combo of performance and economy. Plus it's durable I have about 197k miles on it and still going strong.   I have driven the impala 06 with both the 3.5 and 3.9. I like the power with the 3.9 however I'm concerned about the milage Being a Gm/domestic buyer with 2k on my Gm card I will definately buy some gm product. So if you own an impala with either the 3.5 or 3.9. I would like to here about your (after breakin milage)   Thanks   Jfcnet (el Paso,tx) Replies to this message: zjim (Apr 23, 2006 11:42 am)
#11 of 117 Don't believe the sticker on MPG, or other marketing! by realcarguy Mar 04, 2006 (5:11 pm)
I had a 2001 Monte Carlo SS that got great mileage close to the sticker (28-31 HWY) with great performance, fit/finish and handling! I felt I had to trade it at 100K as the warranty was up. The new Impala SS get's terrible mileage (22 tops expressway, no wind, no hills, no traffic, 69MPH average over 200 miles)! The mileage seem's to be stuck around 19-22 both in town and out. The driver and trips have not changed, just the car. The "EPA" sticker was virtually the same for both cars. The performance, like the mileage, is not as good as other choices. The fit and finish is bad as well along with bad heated seats, windshield washers, side and roof trim falling off, inner-fender wells gaping, etc. I have even had the folks at GM corporate here in MI involved (including the platform mgr. and a marketing person)! All I have gotten is gee that's too bad, don't you like the exhaust sound though. Is any body else getting this run around after paying good money? After 7K+ miles I really miss my old MC SS! Replies to this message: p100 (Mar 10, 2006 10:31 am) ironjasper (Mar 20, 2006 7:43 pm)
#12 of 117 Re: Don't believe the sticker on MPG, or other marketing! [realcarguy] by p100 Mar 10, 2006 (10:31 am)
Replying to: realcarguy (Mar 04, 2006 5:11 pm) Well, I have to mention this, but your SS has the same engine as my '06 Silverado crew cab 4X4 Z71 pickup. I get 15 MPG in town, 16-17 on the highway out of my truck. Impala SS, being more aerodynamic and much lighter, having the DOD system, and taller gearing, will probably get 5 MPG more. This is nothing abnormal. Large engine = lower fuel economy. I understand your frustration, because you are not getting the mileage anywhere near to what the sticker says. However, if you buy ANY car or truck with a 300+ HP engine, forget the upper 20's or low 30's. Low 20's at best.
#13 of 117 Re: Don't believe the sticker on MPG, or other marketing! [realcarguy] by ironjasper Mar 20, 2006 (7:43 pm)
Replying to: realcarguy (Mar 04, 2006 5:11 pm) I would have to agree and disagree with some of RealCarGuy's comments.    In my SS, I'm averaging about 15 mpg in town driving. This is with 93 octane gas and a decent amount of "pushing the pedal down".... I am also not real happy with this number.    I haven't taken many highway trips yet, but when I have I've averaged about 23-26 mpg with the cruise set on 68 most of the time.   My car doesn't have ANY trim issues. Everything fits well, and nothing is falling off. Actually, after 2500 miles, I haven't had any problems with the car, including the seat heaters.   Just like any car, it's possible to get a lemon. Not to belittle RealCarGuy's experience, but I don't think his SS is representative of the car in general.   John
#14 of 117 Very pleased by 94accord_lover Apr 01, 2006 (2:23 pm)
2004 Impala LS, 13,000 miles, 3.8 V6. This is not my car, but my grandma's, and we both love to drive it! She usually averages 27-28 mpg normal driving. Lives in rural hilly area, so she's happy with those numbers. Took a trip to Kentucky, did about 350 miles worth of driving (interstate, city streets, hilly 2-lane byways). Got 31.3 mpg!! Couldn't be happier with a full-sizer that gets better than 30!!
#15 of 117 '06 SS mileage update by quietpro Apr 07, 2006 (3:10 pm)
I'm getting between 16.5 and 18 mpg with mixed driving. Comparing the actual mileage to the car's computer, is very close. The computer usually calculates about .5 mpg less than my calculations. It is within the margin of error since I can't be sure I'm getting an exact amount of fuel in the tank during fill-up. It's much more accurate than my '02 Monte Carlo SS.
#16 of 117 '06 SS mileage by wold_77 Apr 09, 2006 (8:50 pm)
I am getting the same 16.5 to around 19 in town. On the freeway I can go about 325 miles on a tank of gas I think that adds up to around 21-23 mpg not what they claim on the sticker. I think it will take my grandfather driving the car to get the mileage they claim on the sticker! Replies to this message: brittany232 (May 14, 2006 11:38 pm) quietpro (May 15, 2006 1:59 pm)
#17 of 117 Re: Real World Mileage for 06 3.9 3LT or LTZ [jfcnet] by zjim Apr 23, 2006 (11:42 am)
Replying to: jfcnet (Feb 18, 2006 11:11 am) Initially, I was a little disappointed with the mileage on my 3.9 Impala. I now have about 2500 miles on it and the mileage continues to improve. (So is the straight line performance) Most of my driving is suburban highways and streets, in relatively heavy traffic. When I first got the car it was getting only around 17.5 mpg, but I'm now up to 19+ mpg. This is with an occasional romp from the stoplight, just for kicks!! My wife and I took a short trip from Milwaukee to Chicago a couple of weeks ago. I filled up to the "brim" before we left, jumped immediately on the freeway, where we drove through several toll booths. The highway mileage to our destination was constantly in the 30 to 32 mpg range according to the computer. (Using manual mileage checks, I find that the computer's mileage is actually about 1/2 mpg lower than the actual.) We took a side trip to Northbrook, got lost in extreme stop and go traffic, and bucked a strong headwind on our return trip and still averaged just under 27 mpg by manual check. I'm very satisfied with those numbers!
#18 of 117 05 Impala 3.4lt. by ottobond007 Apr 25, 2006 (2:25 pm)
I have a 05 Impala. The question I have is. I live in WI. but the car has California emission's on it. Should I exspect better , worse or the same mpg. then a standard emission car ? Right know the best I get on the hwy. with the curse lock at 69 is 25 mpg. not what I espected.

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