Page 1 of 3 123 LastLast
Results 1 to 20 of 42

Gas mileage

This is a discussion on Gas mileage within the Camaro / SS forums, part of the Vehicle Specific category; Does anyone have a clue what symptoms of bad mileage would be? I put 6.6 gallons in the tank and ...

  1. #1
    Member Eric1987's Avatar
    Join Date
    Jun 2008
    Location
    Long Beach, California
    Posts
    853

    Black
    1999 Z28 Convert

    Gas mileage

    Does anyone have a clue what symptoms of bad mileage would be? I put 6.6 gallons in the tank and BARELY got 110 miles to it. 30% of that was highway rest was city. My air filter looks good. I'm due for an oil change in around 1k miles. I dunno what the problem is. Unless I do highway I get around 12-14 city if I dont mash on it.

  2. #2
    Member hmorris7000's Avatar
    Join Date
    Jun 2007
    Location
    Alabama
    Posts
    142

    BLACK
    02 CAMARO SS a4

    i feel ur pain its the 10% Ethanol thats added to the gas look at the pump the next time u go Ethanol burn faster than gas so thats where ur mileage is going same here with me i have a 00 5 speed civic that i drive to work b4 this Ethanol stuff was added i was getting 40 mpg now im down to 35 mpg it sucks now my maro im not sure havent driven it in a while gas to high

  3. #3
    Junior Member
    Join Date
    Mar 2007
    Location
    ohio
    Age
    29
    Posts
    12

    Black
    94 camaro 3.4

    also check your tire pressure, alignment, and your gas cap... all of which are small things you mgiht be overlooking that can def. lead towards low gas mileage.

    off topic: what is the stock city/highway supposed to be on a z28?

  4. #4
    Junior Member
    Join Date
    May 2008
    Location
    texas
    Posts
    95

    metallic pewter, red
    2002 Z28, 1972 Z28

    This site is useful for finding stock gas mileage.

    http://www.fueleconomy.gov/feg/findacar.htm

  5. #5
    Moderator Firebirdjones's Avatar
    Join Date
    May 2006
    Location
    Arizona
    Posts
    12,552
    When was the last time the 02 sensors were changed????

    It could be alot of other little things as well that were already mentioned. They add up.

    As mentioned,,,quality of gas and octane being used has alot to do with it as well. Climate and elevation can also play a roll.

    Your 12-14 mpg around town is pretty horrible,,,, If we are talking about a stock car here...

    Both of mine consistently get 20-22 mpg around town, 1 6speed and 1 automatic. They now both have mild bolt ons,,,one even has a smallish camshaft,,,,mileage is still the same with both cars though.

  6. #6
    Moderator Firebirdjones's Avatar
    Join Date
    May 2006
    Location
    Arizona
    Posts
    12,552
    I just looked back at your post. Appears you're from CA.
    Highest octane as you know is 91 that I'm aware of,,,and I think the blend of fuel Cali uses is 10% ethanol most everywhere???? You may have a hard time finding decent quality pump gas out there. Arizona gets there fuel supply from the same place as Cali,,,and I've been searching around out there with no luck so far.

  7. #7
    Member Eric1987's Avatar
    Join Date
    Jun 2008
    Location
    Long Beach, California
    Posts
    853

    Black
    1999 Z28 Convert

    Well I just picked up the car last month. They said all fluids were just recently changed. I have no idea on the O2 sensors. I filled up with 91. I just put 13 gallons in. I bet I'll have a rough time getting 200 miles outta that IF I can.

  8. #8
    Junior Member
    Join Date
    Jul 2008
    Location
    Detroit, Mi
    Posts
    7

    Black
    1999 Camaro B4C

    my 1999 b4c averages 24/26 mpg average, no idea what city or highway may be

  9. #9
    Member Eric1987's Avatar
    Join Date
    Jun 2008
    Location
    Long Beach, California
    Posts
    853

    Black
    1999 Z28 Convert

    Its rated at 17 city 27 highway...

  10. #10
    Exalted Cyclops 67CamaroRSSS's Avatar
    Join Date
    Feb 2007
    Location
    San Diego, CA
    Posts
    5,824

    2002 Z28 A4 NBM
    Sadly now demodded :(

    Normally I get about 15mpg in the city. I found that if I drive and accelerate reeeeaaaaalllllyyyy sloooooooow I can get almost 20 in the city but doing that is boring was hell. This is in the 98 with an M6.

    Don't even ask about the 02. I drive it like I stole it all the time.

  11. #11
    Junior Member
    Join Date
    Mar 2007
    Location
    ohio
    Age
    29
    Posts
    12

    Black
    94 camaro 3.4

    sweet... good link

  12. #12
    Member Eric1987's Avatar
    Join Date
    Jun 2008
    Location
    Long Beach, California
    Posts
    853

    Black
    1999 Z28 Convert

    Yeah I'm only getting comparable mileage on the freeway. I guess its just normal.

  13. #13
    Member Eric1987's Avatar
    Join Date
    Jun 2008
    Location
    Long Beach, California
    Posts
    853

    Black
    1999 Z28 Convert

    Something weird happened. Today when I started my car a weird noise. I was still in neutral hand brake was up. I revved it once and it sounded like a pop. Not a misfire pop but much quieter. And I noticed my inside lights slightly dimmed when I did that. Driving it feels fine though.

  14. #14
    Just me Y2KPewterSS's Avatar
    Join Date
    Nov 2006
    Location
    Broken Arrow, OK
    Age
    42
    Posts
    23,353

    Pewter metallic
    2000 Camaro SS

    When was the last time you changed your fuel filter? Also, when was the last time you changed your plugs/wires?
    CCW SP 500s 18x10 275/35 18x11 295/35
    SLP CME with GMMG style catback
    Painted manta stripe

    Quote Originally Posted by konigandy6 View Post
    I'd rather be bi than full homo!!!!

  15. #15
    Member Eric1987's Avatar
    Join Date
    Jun 2008
    Location
    Long Beach, California
    Posts
    853

    Black
    1999 Z28 Convert

    Well I got the car a month ago so I really have no clue. Should I do all that? And what would it cost me? My dad said idling he can feel a SLIGHT miss. I told him thats normal which I thought it was but I really dont know.

  16. #16
    Just me Y2KPewterSS's Avatar
    Join Date
    Nov 2006
    Location
    Broken Arrow, OK
    Age
    42
    Posts
    23,353

    Pewter metallic
    2000 Camaro SS

    Old/clogged/nasty fuel filter will really hurt your MPG and eventually burn up your fuel pump. $15-20 for a new one and very simple to change. Its down around the rear driver tire, just in front of it some.

    New plugs would run you $20 as well, but can be a PIA to swap out. Considering your car has over 100K miles, I would highly advise changing both so you know its been done and most likely you will see your MPG increase significantly.

  17. #17
    Member Eric1987's Avatar
    Join Date
    Jun 2008
    Location
    Long Beach, California
    Posts
    853

    Black
    1999 Z28 Convert

    My car doesnt have over 100k. It has 73k. 20 bucks each or for all 8? And can someone link me to a good online store/brand to buy? Wires too.

  18. #18
    Just me Y2KPewterSS's Avatar
    Join Date
    Nov 2006
    Location
    Broken Arrow, OK
    Age
    42
    Posts
    23,353

    Pewter metallic
    2000 Camaro SS

    Quote Originally Posted by Eric1987 View Post
    My car doesnt have over 100k. It has 73k. 20 bucks each or for all 8? And can someone link me to a good online store/brand to buy? Wires too.
    Sorry, I looked at the 110 in your first post and thought that was the miles

    Even with 73k though, I would still change it all out. $20 for all 8

    Go to your local auto parts store and get some NGK TR55s for the plugs and search around for MSD wires, Thunder Racing will have them. Wires will run you $50-60.

  19. #19
    Member Eric1987's Avatar
    Join Date
    Jun 2008
    Location
    Long Beach, California
    Posts
    853

    Black
    1999 Z28 Convert

    Why are the wires more expensive then the plugs? And should I change both?

  20. #20
    Just me Y2KPewterSS's Avatar
    Join Date
    Nov 2006
    Location
    Broken Arrow, OK
    Age
    42
    Posts
    23,353

    Pewter metallic
    2000 Camaro SS

    Quote Originally Posted by Eric1987 View Post
    Why are the wires more expensive then the plugs? And should I change both?
    I can't explain why the wires are more expensive, they just are. Chances are your current wires are probably fine for now. I would change the plugs and fuel filter for now and see what that does for you.

Page 1 of 3 123 LastLast

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Gas Mileage
    By VOODOOII in forum External Engine
    Replies: 27
    Last Post: 08-24-2009, 09:10 AM
  2. Mileage
    By JwMonE99 in forum LT1
    Replies: 32
    Last Post: 01-27-2008, 06:06 AM
  3. LS1 Gas Mileage
    By LS1Powerhouse in forum Firebird / WS6
    Replies: 39
    Last Post: 06-29-2007, 07:14 PM
  4. bad gas mileage ls1
    By waylonSS in forum General Help
    Replies: 16
    Last Post: 09-23-2006, 05:10 PM
  5. 3.73 gas mileage?
    By jakef777 in forum Drivetrain
    Replies: 1
    Last Post: 09-11-2006, 02:07 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •