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Gas mileage question??????????????????

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Old Aug 17, 2003 | 05:56 PM
  #1  
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Default Gas mileage question??????????????????

I took the vette on a 150 mi. trip on the Interstate this weekend. Ran into one spot where there was a wreck and had to slow to 30mph for about 5 min. Also had a spot of heavy rain that slowed me to 45mph for about 15 min. I had the cruise set at anywhere from 68mph to 73mph most of the way and put the pedal half to 3/4 of the way down to pass and play from time to time. My average gas mileage was 23.3mpg. That seems kinda low to me? Does anyone have any idea what I should be getting for mpg? Thanks for the help
:flag
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Old Aug 17, 2003 | 08:08 PM
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Default Re: Gas mileage question?????????????????? (ccajun4real)

I have a 98 Six speed , that gives a better overdrive ratio, on a similar trip I get 25-26. I know alot of people are getting around 30 on the highway but not my car . :seeya
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Old Aug 17, 2003 | 09:27 PM
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Default Re: Gas mileage question?????????????????? (indyblue98)

My 02 6 speed gives me 31mpg at 65 mph. Only 150 miles may not be long enough for a good average read.
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Old Aug 17, 2003 | 09:31 PM
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Default Re: Gas mileage question?????????????????? (ccajun4real)

when i drive my car c5 a4 like i stoll it . i only get about 18 mpg due to ls1 edit and the fuel trims :crazy:
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Old Aug 17, 2003 | 09:40 PM
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Default Re: Gas mileage question?????????????????? (stunna)

That's not too bad. If I take a longer trip...more like 300 miles...then I can get around 27 mph at normal driving. It doesn't take much to change that a lot though...some slow traffic, etc. but the gas pedal is what usually messes up the average. I'll bet if you tried it again with fairly level terrain and a consistent speed that you will pick up 3-4 mpg.
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Old Aug 17, 2003 | 10:05 PM
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Default Re: Gas mileage question?????????????????? (FunDriver)

Actually that sounds about right for a 150 mile trip with some slow driving. I can do a little better than that because the blower makes it a little more efficient (if I keep my foot out of it :rolleyes: ). :cheers:
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Old Aug 17, 2003 | 11:13 PM
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Default Re: Gas mileage question?????????????????? (ccajun4real)

I had just taked a 165 mile trip with my 2000, A4 @60-70mph and got 28.8 :auto:
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Old Aug 18, 2003 | 12:53 AM
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Default Re: Gas mileage question?????????????????? (XCELR8R)

I have an A4 and i've never gotten over 24mpg and thats according to the computer, when i do it the old fashioned way its usually closer to 22mpg and it doesn't seem to matter how a drive it :chevy
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Old Aug 18, 2003 | 09:19 AM
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Default Re: Gas mileage question?????????????????? (FASTENUF)

did you reset? this will effect the readings

try again but reset at the start of your trip
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Old Aug 18, 2003 | 02:11 PM
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Default Re: Gas mileage question?????????????????? (Mr. Jones)

Ya, if you didn't reset it the results are worthless.
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Old Aug 18, 2003 | 07:19 PM
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Default Re: Gas mileage question?????????????????? (ccajun4real)

We did a trip from Boise to Mesquite and back running 10-15 over the limit with our 03 6sp and got 30. Our 92 6sp was almost as good. :seeya
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Old Aug 18, 2003 | 07:56 PM
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Default Re: Gas mileage question?????????????????? (ccajun4real)

If you stopped in the traffic it brings your average way down. For whatever reason when you stop your EPA reads 0.0 miles/gallon, and it uses that number to calculate your milage. I tested this by resetting the milage and for about 2 minutes I was getting 25 mpg, then when I got to a red light you can see your mpg steadily drop. So I figure if you have any stops the mpg on your DIC is pretty much worthless.


[Modified by pk2401, 4:57 PM 8/18/2003]
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Old Aug 19, 2003 | 10:20 AM
  #13  
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Default Re: Gas mileage question?????????????????? (pk2401)

sounds about right the slow parts really lower your average.
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Old Aug 19, 2003 | 10:33 AM
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Default Re: Gas mileage question?????????????????? (Bob Chapman)

I drove from NY to Chicago and back 2000 miles. I started out at 21 mpg and when I got to Chicago it was up to 28 (860 miles) by the time I got back it was up to 30 mpg. I think it takes a long time, like 1000 miles to reach a equalibrium on the highway. 150 miles just isn't long enough to change it much.
:seeya
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Old Aug 19, 2003 | 10:41 AM
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Default Re: Gas mileage question?????????????????? (ccajun4real)

I think that is a little low. I made a trip to Tucson (round trip 150) and averaged 28.8. This included about three traffic light stops and a little in town driving. On the interstate I drove at speeds of 75-80. Your Breathless MAF ends with air foil, relocated/recalibrated MAT sensor, Hypertech Power Programmer may be affecting your mileage. I have been checking my mileage lately due to my mods.
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Old Aug 19, 2003 | 10:43 AM
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Default Re: Gas mileage question?????????????????? (fast2000vette)

I agree you need more distance for a good evaluation. I'm getting about 28 on the open road; 18 in stop and go. Hope that helps. :chevy
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Old Aug 19, 2003 | 10:50 AM
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Default Re: Gas mileage question?????????????????? (Blue'02)

I agree you need more distance for a good evaluation. I'm getting about 28 on the open road; 18 in stop and go. Hope that helps. :chevy
Me too!! :)
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Old Aug 19, 2003 | 11:11 AM
  #18  
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Default Re: Gas mileage question?????????????????? (indyblue98)

Highway (long trips > 500 miles) I get ~29mpg
Highway (short trips) I get ~ 26mpg
City (feather foot) I get ~ 18mpg
City (lead foot) I get ~13mpg

Oh yeah -- indyblue98 -- I think you should take the Fiero out of that awesome list of 'cars worth mentioning'... :D

--dc.
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Old Aug 19, 2003 | 10:49 PM
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Default Re: Gas mileage question?????????????????? (ccajun4real)

I wish I got 23 mpg.

I get about 3/4 gallan per 1/4 mile and 17 MPG on the highway.

4.10 rear on an A4 will do that to you;)
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Old Aug 20, 2003 | 09:57 AM
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Default Re: Gas mileage question?????????????????? (REDGAR)

After I got the G5X-2 cam installed and the headers, I began my journey home. I stopped once I got on 95N and filled up the car and reset everything. I averaged 38.1 mpg and went 540 miles on that tank of gas. I was on fumes, but I still made it.
I was quite impressed.
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