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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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#92 of 117 Re: 2008 LT 50th Edition [nosirrahg] by saxe10595 Aug 27, 2008 (7:06 am)
Replying to: nosirrahg (Aug 26, 2008 6:33 pm) this is factory installed. Came with 50th anniversary Impala and I guess the speedometer is adjusted from the factory as this was standard on the vehicle. Will post as I drive more about the mileage and alco check between fillups to ensure that computer mileage ie similar. Replies to this message: cnw (Aug 27, 2008 6:10 pm) ryster (Nov 07, 2008 1:02 am) cnw (Nov 07, 2008 3:30 pm)
#93 of 117 Re: 2008 LT 50th Edition [saxe10595] by cnw Aug 27, 2008 (6:10 pm)
Replying to: saxe10595 (Aug 27, 2008 7:06 am) saxe--Glad to hear a report from an owner of a 50th Edition. I own a 2006 LT2, and considered trading for a 50th Edition--primarily for the Jewel Tint red and the sport suspension; I've already added the SS-style spoiler and the wheels/tires are an optional piece at any time. Keep us posted on handling and mileage as you get more miles on it. Clark Replies to this message: ryster (Nov 07, 2008 1:02 am) cnw (Nov 07, 2008 3:30 pm)
#94 of 117 2009 Impala 3.9L LTZ MPG by hjr3 Sep 17, 2008 (9:55 am)
I'm considering a 3.9L 2009 Impala LTZ but I haven't seen too much on what real world drivers are experiencing with the newer (2007-2009) vehicles. Can anyone share their mileage experience in city, mixed and highway (don't forget speeds) for this car equipped with the 3.9L. I'm also curious about your experience and thoughts on Chevy's Active Fuel Management for this engine.   Thanks
#95 of 117 Help With very low gas mileage by alphacar Sep 20, 2008 (3:03 am)
Hi i have 2001 impala with 3.8 engine and 60 k miles my gas mileage is less than 10 mpg city driving and max 20 mpg in highway 60mph steady speed .I pass emission test with success ,I dont know if there is lack of power because i drive slow ,I change the air filter already i like the car and want to have better mileage .Any help will be appreciated : Replies to this message: nosirrahg (Sep 21, 2008 5:12 pm)
#96 of 117 Re: Help With very low gas mileage [alphacar] by nosirrahg Sep 21, 2008 (5:12 pm)
Replying to: alphacar (Sep 20, 2008 3:03 am) Wow, that's really bad mileage! The first thing that comes to mind is maybe a clogged catalytic converter, though you'd think that would show up on the emission test. The other thing would be to maybe make sure your transmission is shifting properly; my 2000 was a base model so it didn't have a tach, but if yours has one you might post your RPM when you're cruising at 60 mph and see if anyone else here can compare figures with you. But even without a tach you should be able to note when the transmission shifts, and make sure it's getting into 4th gear properly.
#97 of 117 Bad mileage by alphacar Sep 21, 2008 (8:02 pm)
Hi nosirrahg Thanks for your answer the emission test was very good and showing very low values regarding the tach in 60 mph is around 1500 rpm ,the gear shifting properly .
#98 of 117 '04 Impala LS by gar_fanatic Oct 31, 2008 (8:54 am)
I've had my car for 3 years now. Bought it with 20,000 mi, now have 112,000. When I bought it, I was consistantly getting 27 commuting to work (mostly rural highway, no freeway). It never used to matter if the A/C was on or not or how I drove, it was always 27. Now I'm down to 24 mpg since last winter. We did get 31-32 coming back from Tennessee to Iowa 2 years ago, which is the best ever. We've changed plugs, wires, fuel filter, cleaned fuel injectors, air filters, cleaned throttle plates, cleaned mass air flow sensor, coolant flush, semi-synthetic oil (every time), thermostat, transmission flush, among other things, trying to get our fuel mileage back. It's just not working. Anyone have any more ideas? Overall, I like the vehicle. It's really comfortable going down the road and has a great sporty feel to it.
#99 of 117 Re: MPG on 2003-04 Impala ? [michel4] by road46 Nov 06, 2008 (7:42 pm)
Replying to: michel4 (Jul 21, 2005 7:14 pm) I have a 04 Impala with the 3.4 engine. I now have about 44400 miles on this car and the highest mpg that I have obtained was 36.6 mpg driving from PA to VA. This was done by driving at about 60 mph with the air conditioner on the lowest setting, windows up. The best "average" highway mpg is around 32 mpg. I average about 22-25 mpg around town with a little bit of highway driving. You can also go to "True Delta. com and see real mpg figures reported by owners. If you are considering one of these cars they are reliable, safe vehicles and can be obtained at a good price used. I would try to get the latest model as I could afford. Hope this helps.
#100 of 117 Re: 2008 LT 50th Edition [saxe10595] by ryster Nov 07, 2008 (12:45 am)
Replying to: saxe10595 (Aug 26, 2008 4:38 pm) "Just bought this Impala and first 750 miles with computer average is 22.7 in mixed highway and city driving with plenty of short run ins. This Impala is 3.5 L..."   My '06 Impala 2LT with the 3.5L has averaged about the same mileage as yours since when it was new. I now have about 33,000 miles on it and the mileage remains in the 21-22mpg range in mixed driving. Pure city driving nets about 19mpg, all highway driving 27-28mpg.
#101 of 117 Re: 2008 LT 50th Edition [cnw] by ryster Nov 07, 2008 (1:02 am)
Replying to: cnw (Aug 27, 2008 6:10 pm) "I own a 2006 LT2, and considered trading for a 50th Edition--primarily for the Jewel Tint red and the sport suspension; I've already added the SS-style spoiler and the wheels/tires are an optional piece at any time."   Adding the '06+ SS style 18" wheels to a non-SS '06 or '07 Impala is not a simple bolt on. The front would be a direct swap, but the rear strut mount plates are different between the LS/LT/LTZ models from the '06 and '07 model years and the SS models. To do the swap on '06's and '07's, you would also need to get the SS rear strut pieces installed...otherwise the SS wheels will rub on the back.   In the '08 model year, LTZ, SS, and the 50th anniv. models have the sport suspension as standard which allows them to run the 18" wheels unobstructed.   Adding the '06/'07 17" alloys from an LTZ to an LS or LT model would be a simple swap. The SS wheels, not so much. I looked into it myself, and talked to thers who had done it, and determined it to be too expensive. The 18" wheels/tires themselves would be inexpensive enough on eBay, but getting the rear suspension swapped out was going to easily add another $300 in parts and labor to the project. Replies to this message: cnw (Nov 07, 2008 3:30 pm)

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