poor gas millage ? please help.. - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1987-1991 Parley with regards to your 1987 to 1991 Bonneville, Olds 88 or Buick Le Sabre Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 06-06-2007, 03:34 PM   #1
Senior Member
Certified GM nut
Thread Starter
 
Join Date: Jan 2007
Location: allentown, pa--brooklyn, ny
Posts: 1,646
Thanks: 0
Thanked 0 Times in 0 Posts
88bonnsse is on a distinguished road
Default poor gas millage ? please help..

hi i think im getting poor gas millage and i dont know what to do.. ok first to let it be known i have a small 2'' long crack in my pipe about 6'' '* from the catco going toward the muffler.. i noticed i put in $40 of gas which only got me a lousy 13 and 1/2 gallons. and i hit my trip reset when i pulled out of the gas station and now om on E again and my trip reset reads 134 miles.. only 134 miles on almost 14 gallons.. is this good? besides welding my exhaust pide crack what else can i do to get better gas millage.. thanks... john.. i hate these long trips with these high gas prices as its really killing my pocket just as much as yours..
88bonnsse is offline   Reply With Quote
Old 06-06-2007, 03:51 PM   #2
DINOSAURUS BOOSTUS

Expert Gearhead
 
BillBoost37's Avatar
 
Join Date: Mar 2005
Location: Enfield, CT
Posts: 41,391
Thanks: 0
Thanked 0 Times in 0 Posts
BillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of lightBillBoost37 is a glorious beacon of light
Default

John...

First thing you need to do is fill the tank..drive most of it, then fill back up and calculate your mileage. This will give you a true picture of MPG.

As for the things you know that need to be addressed. Yes, fix them. they might be contributors.
BillBoost37 is offline   Reply With Quote
Old 06-06-2007, 05:05 PM   #3
Junior Member
Posts like a Ricer Type-R
 
Join Date: Aug 2002
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
willwren is on a distinguished road
Default

This sounds alot more like a mechanical problem than something that belongs in Performance and Brainstorming. I'll move it for you.
willwren is offline   Reply With Quote
Old 06-06-2007, 05:17 PM   #4
Senior Member
Certified GM nut
 
Join Date: Feb 2004
Location: CT
Posts: 2,099
Thanks: 0
Thanked 1 Time in 1 Post
SSEBONNE4EVA is on a distinguished road
Default mpg

I think what you are saying is your getting a little over 10 mpg. Something is terribly wrong. Have you done a tune up recently? If so what have you done. How many miles are on the 02 sensor. You could take it out and look at the tip. If its charcoal black, replace it.
SSEBONNE4EVA is offline   Reply With Quote
Old 06-06-2007, 07:19 PM   #5
Senior Member
Certified GM nut
Thread Starter
 
Join Date: Jan 2007
Location: allentown, pa--brooklyn, ny
Posts: 1,646
Thanks: 0
Thanked 0 Times in 0 Posts
88bonnsse is on a distinguished road
Default .

i gave the car full tune up about 5 months ago.. i rep;laced everything execpt the o2 sensor and the gas filter.... i will check out my o2 sensor tonight and get back with my reply........ thanks
88bonnsse is offline   Reply With Quote
Old 06-06-2007, 07:53 PM   #6
Senior Member
Posts like a Northstar
 
bastard's Avatar
 
Join Date: Nov 2005
Location: Arkansas
Posts: 694
Thanks: 0
Thanked 0 Times in 0 Posts
bastard is on a distinguished road
Default

Low tire pressure is something that a lot of people overlook, but it is such a cheap and easy fix that there is really no excuse for it. You can expect to get worse mileage when driving with the AC on, especially in town stop and go driving.
bastard is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
what was the record millage on a bonneville.? 88bonnsse General GM Chat 10 04-07-2008 02:18 PM
real poor gas millage. what could it be? anyone? 88bonnsse 1992-1999 12 08-05-2007 01:40 PM
that poor poor neon...like i care! SSEimatt93 Lounge 4 10-22-2003 03:48 PM
poor poor civic LOL SSEimatt93 General GM Chat 6 05-12-2003 11:05 AM
Poor Poor Hollywood :( Tamara 1992-1999 3 11-17-2002 07:28 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not 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 Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 12:05 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.