fuel consumption - Team Camaro Tech
Troubleshooting Diagnosing problems done here.

LinkBack Thread Tools Display Modes
post #1 of 4 (permalink) Old Aug 11th, 99, 06:42 AM Thread Starter
Join Date: Aug 1999
Location: Kamloops, B.C.
Posts: 2
Just bought a 91 Z28. 305 TPI. I have to fill up at least 2 times a week with only moderate driving. Getting a little pricey. What could lead to this? Does driving it hard make THAT much of a difference? I know that my throttle body is a little gummed up, but I would think that would lead to less performance, as well as less gas if anything. I previously owned an RX7, which gets the same gas mileage, so I KNOW something is wrong.
Caustic is offline  
Sponsored Links
post #2 of 4 (permalink) Old Aug 11th, 99, 03:16 PM
Join Date: Aug 1998
Location: Waldorf Md. USA
Posts: 3,300
You did not mention your actual mileage ?? Twice a week would be good if you were driving 800 miles a week ! All kidding aside, if you keep your foot out of it, that car should get well over 20 mpg highway. A good customer of mine has a 93 Vette and he can get 25-26 on the road BUT......put your foot in it all the time, and the mileage goes away real quick. My 85 full size Blazer with a carbureted 305 averaged 16 local and 20 highway so that should give you something to shoot for. If your mileage is way off and you are driving it halfway decently, I would suggest finding someone that could put a scanner and exhaust gas analizer on it and see what is really happening.
Hope this helps,

Bill Koustenis
Advanced Automotive Machine
Waldorf Md

BillK is offline  
post #3 of 4 (permalink) Old Aug 12th, 99, 08:53 PM Thread Starter
Join Date: Aug 1999
Location: Kamloops, B.C.
Posts: 2

I did not enter the actual mileage because I do not know what it is. The GM fuel sensor is so screwy you never really know how much fuel you have. Can change as much as 1/4 tank depending on your car's incline. But I drive it just as hard as my RX7, and both in top condition should get around 17 mpg or so I think. I am SURE this is not getting even remotely close to that.
Caustic is offline  
post #4 of 4 (permalink) Old Aug 13th, 99, 11:25 AM
Tech Team
Join Date: Mar 1999
Location: College Park, MD USA
Posts: 42
Ehehe I thought I was the only one with that problem...yeah, apparently the counterbalance for the fuel gauge is either nonexistant or messed up. As a result, when I accelerate or get on an incline, fuel runs to the back of the tank, and when I decelerate or get on a decline, it drops down. It'll sometimes change from half-tank to empty on the same stretch of road.

Look at the gauge when you're driving level at a constant speed, or if your driveway is level, just leave it parked and turn on the ignition. If the fuel's had time to run back into your tank, that's the most accurate reading you can get.

BTW is there any way to fix that? It's very disturbing.
squirrels is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Team Camaro Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address.
NOTE we receive a lot of registrations with bad email addresses. IF you do not receive your confirmation email you will not be able to post. contact support and we will try and help.
Be sure you enter a valid email address and check your spam folder as well.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome