[Z06] 2002 vs 2003 z06 and gas mileage
09-20-2005, 02:35 PM
#1
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2002 vs 2003 z06 and gas mileage
so i'm reading that the 2003 has 15% better highway mileage then the 2002. what can we do to our 2002's to bring them up to par? ecu?? injectors?? plugs???
09-20-2005, 02:54 PM
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Originally Posted by itsmeek
so i'm reading that the 2003 has 15% better highway mileage then the 2002. what can we do to our 2002's to bring them up to par? ecu?? injectors?? plugs???
09-20-2005, 02:57 PM
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I have never once heard that before. Some 03's have a different fuel system (C6) but i have never heard 15% better fuel mileage, where did you hear that from? Im sure it was some kid that cant spell corvette.
09-20-2005, 03:47 PM
#4
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CI 3-5-6-7-8 Veteran
I've never heard of better mileage... I have heard of better mileage with an a/m tune. My bolt-on '01 Z06 (no tuning) gets 28 mpg at 75 mph, but my buddies '04 w/ a full dyno-tune to go with his bolt-ons gets 32 sometime!
09-20-2005, 03:48 PM
#5
Originally Posted by F1_SS
I have never once heard that before. Some 03's have a different fuel system (C6) but i have never heard 15% better fuel mileage, where did you hear that from? Im sure it was some kid that cant spell corvette.
I have heard people say that with the 2004 they can get up to 35 mpg so I am not surprised that someone with the 2002 model might do better than 28. An improved fuel delivery system can have a nice impact not only o the performance of the engine but other systems as well, just as an improved air intake system can improve performance.
09-20-2005, 04:03 PM
#7
Originally Posted by itsmeek
so i'm reading that the 2003 has 15% better highway mileage then the 2002. what can we do to our 2002's to bring them up to par? ecu?? injectors?? plugs???
I then tap in on specs at the top.
What I read on the Z06 regarding estimated mileage was 19/28/23
For my 2004 it has a high of 22 mpg city and "33 mpg on the highway".
09-20-2005, 04:31 PM
#8
Le Mans Master
I've seen different numbers for each year car depending on what WWW site you are looking at. These pages show the 2004 at 28 MPG:
http://www.theautochannel.com/newcar...s&trimid=12839
http://www.fatherlarryscorvetteshop.com/new_page_11.htm
http://chevrolet.jbcarpages.com/Corv...004/index4.php
Can someone with a 2004 please take a pic of the EPA section on their original window sticker and post it here?
http://www.theautochannel.com/newcar...s&trimid=12839
http://www.fatherlarryscorvetteshop.com/new_page_11.htm
http://chevrolet.jbcarpages.com/Corv...004/index4.php
Can someone with a 2004 please take a pic of the EPA section on their original window sticker and post it here?
Last edited by rbartick; 09-20-2005 at 04:34 PM.
09-20-2005, 04:35 PM
#9
Le Mans Master
I've seen different numbers for each year car depending on what WWW site you are looking at. These pages show the 2004 at 28 MPG:
http://www.theautochannel.com/newcar...s&trimid=12839
http://www.fatherlarryscorvetteshop.com/new_page_11.htm
http://chevrolet.jbcarpages.com/Corv...004/index4.php
Can someone with a 2004 please take a pic of the EPA section on their original window sticker and post it here?
http://www.theautochannel.com/newcar...s&trimid=12839
http://www.fatherlarryscorvetteshop.com/new_page_11.htm
http://chevrolet.jbcarpages.com/Corv...004/index4.php
Can someone with a 2004 please take a pic of the EPA section on their original window sticker and post it here?
09-20-2005, 08:11 PM
#10
Le Mans Master
The official EPA fuel economy web page:
http://www.fueleconomy.gov/feg/FEG2000.htm
Model year 2004 fuel economy guide:
http://www.fueleconomy.gov/feg/FEG2004.pdf
The doc says Chevrolet Corvette M-6 -> 19 City / 28 Hwy. These are the same numbers that are on my 2002 window sticker.
Model year 2002 fuel economy guide:
http://www.fueleconomy.gov/feg/FEG2002.pdf
The EPA fuel economy web page has fuel economy docs dating back to model year 2000.
http://www.fueleconomy.gov/feg/FEG2000.htm
Model year 2004 fuel economy guide:
http://www.fueleconomy.gov/feg/FEG2004.pdf
The doc says Chevrolet Corvette M-6 -> 19 City / 28 Hwy. These are the same numbers that are on my 2002 window sticker.
Model year 2002 fuel economy guide:
http://www.fueleconomy.gov/feg/FEG2002.pdf
The EPA fuel economy web page has fuel economy docs dating back to model year 2000.
Last edited by rbartick; 09-20-2005 at 08:14 PM.
09-20-2005, 08:17 PM
#11
Le Mans Master
The official EPA fuel economy web page:
http://www.fueleconomy.gov/feg/FEG2000.htm
Model year 2004 fuel economy guide:
http://www.fueleconomy.gov/feg/FEG2004.pdf
The EPA document says Chevrolet Corvette M-6 -> 19 City / 28 Hwy. These are the same numbers that are on my 2002 window sticker.
Model year 2002 fuel economy guide:
http://www.fueleconomy.gov/feg/FEG2002.pdf
The EPA fuel economy web page has fuel economy docs dating back to model year 2000.
http://www.fueleconomy.gov/feg/FEG2000.htm
Model year 2004 fuel economy guide:
http://www.fueleconomy.gov/feg/FEG2004.pdf
The EPA document says Chevrolet Corvette M-6 -> 19 City / 28 Hwy. These are the same numbers that are on my 2002 window sticker.
Model year 2002 fuel economy guide:
http://www.fueleconomy.gov/feg/FEG2002.pdf
The EPA fuel economy web page has fuel economy docs dating back to model year 2000.
09-20-2005, 11:26 PM
#16
Le Mans Master
Originally Posted by Charles7Mitchell
As was stated in the other post, during the 2003 year some changes were made in the fuel injection system.
09-21-2005, 12:24 AM
#17
Team Owner
Originally Posted by Charles7Mitchell
As was stated in the other post, during the 2003 year some changes were made in the fuel injection system. In another thread it was stated that some issues in the 2002 were addressed, but what these were I don't know. In any case changes were made. Type in 2002 Corvette Z06, do a web search, and tap in on one that offers specifications. What I saw was an estimated top highway mileage of 28 mpg. For the 2004 the top highway mileage was stated at 33 mpg. That's an increase of just over 15%. BTW these numbers are not produced by GM, but all models are tested independently for the federal govt.
I have heard people say that with the 2004 they can get up to 35 mpg so I am not surprised that someone with the 2002 model might do better than 28. An improved fuel delivery system can have a nice impact not only o the performance of the engine but other systems as well, just as an improved air intake system can improve performance.
I have heard people say that with the 2004 they can get up to 35 mpg so I am not surprised that someone with the 2002 model might do better than 28. An improved fuel delivery system can have a nice impact not only o the performance of the engine but other systems as well, just as an improved air intake system can improve performance.
09-22-2005, 10:39 PM
#20
Burning Brakes
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I regularly get 29 MPG at 70 MPH on my 2002 with AC and cruise control. The best that I have ever got at 70 MPH is 30 MPG. If I drove at 60 MPH, which would be impossible for me, I would imagine that I could get in the low 30s MPG.