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.

What can I do to improve my gas mileage?

Thread Tools
 
Search this Thread
 
Old 12-31-1969, 07:00 PM
  #1  
Senior Member
Posts like a Supercharger
Thread Starter
 
Blk_Bonneville's Avatar
 
Join Date: Mar 2002
Location: Toronto, Can.
Posts: 169
Likes: 0
Received 0 Likes on 0 Posts
Blk_Bonneville is on a distinguished road
Default

I'm getting about 300-325 miles out of a full tank. Seems kind of thirsty to me seeing as I do about 70/30 HWY driving. What are u guys getting to a tank? I have given the car a new set of plugs, air filter, made sure my tire pressure is good, and I don't carry any extra weight in the car. So I'm open to any thoughts u guys have...thanks...Andru.
Old 12-31-1969, 07:00 PM
  #2  
Senior Member
Posts like a Turbo
 
csprague's Avatar
 
Join Date: Jan 2002
Location: Torrington, CT
Posts: 267
Likes: 0
Received 0 Likes on 0 Posts
csprague is on a distinguished road
Default

I get around 18mpg (something like 270 a tank) in mostly city driving. I have a good bit of a lead foot, too.

Try changing your oxygen sensor. Last summer my car was getting 15mpg and throwing up SES lights, replacing it solved all that. They're only $20 and easy to change so it can't hurt.
Old 12-31-1969, 07:00 PM
  #3  
Senior Member
Posts like a Supercharger
Thread Starter
 
Blk_Bonneville's Avatar
 
Join Date: Mar 2002
Location: Toronto, Can.
Posts: 169
Likes: 0
Received 0 Likes on 0 Posts
Blk_Bonneville is on a distinguished road
Default

Can someone tell me the size of my gas tank? Is it 60 Litres? Thanks...Andru.
Old 12-31-1969, 07:00 PM
  #4  
Senior Member
Posts like a Turbo
 
csprague's Avatar
 
Join Date: Jan 2002
Location: Torrington, CT
Posts: 267
Likes: 0
Received 0 Likes on 0 Posts
csprague is on a distinguished road
Default

Mine is 18 gallons. Yours is probably the same. It'* listed in your manual if you have one.
Old 12-31-1969, 07:00 PM
  #5  
Senior Member
Posts like a Supercharger
Thread Starter
 
Blk_Bonneville's Avatar
 
Join Date: Mar 2002
Location: Toronto, Can.
Posts: 169
Likes: 0
Received 0 Likes on 0 Posts
Blk_Bonneville is on a distinguished road
Default

No, I don't have a manual. It probly is around 60 litres or so. The only reason I'm want to know for sure is because whenever I fill up the gauge never goes to full. So I'm just wondering if it'* off a litte bit so that when I'm reading almost empty I might still have just under 1/4 tank. If memory serves me correct I can't remember putting more then 55 litres in at one time, not that I pay to much attention to that. Thanks...Andru.
Old 06-13-2002, 01:02 AM
  #6  
Senior Member
Posts like a Supercharger
Thread Starter
 
Blk_Bonneville's Avatar
 
Join Date: Mar 2002
Location: Toronto, Can.
Posts: 169
Likes: 0
Received 0 Likes on 0 Posts
Blk_Bonneville is on a distinguished road
Default That'* better...

Since I had to replace my motor I've been noticing that my gas milage is a bit better so I figured it out tonight. Before I was getting about 19.5 MPG and now I'm getting about 22MPG. By my calculations this new motor should pay for itself in JUST 6 years...man that'll be sweet hehe
Old 07-21-2002, 11:20 PM
  #7  
Senior Member
Posts like a Turbo
 
Azwed's Avatar
 
Join Date: Jul 2002
Posts: 417
Likes: 0
Received 0 Likes on 0 Posts
Azwed is on a distinguished road
Default

I got about just over 33 mpg on my last trip up north.

The highest I have mpg I ever got was 40.1 mpg on a 220 mile drive. It was a cool fall day and I did not need to run the AC and kept the car between 60 and 70 mph. I have never been able to duplicate it so it might be a fluke.
Old 08-19-2002, 09:41 PM
  #8  
Senior Member
True Car Nut
 
DeathRat's Avatar
 
Join Date: May 2002
Location: Edmonton, AB Canada
Posts: 2,621
Likes: 0
Received 0 Likes on 0 Posts
DeathRat is on a distinguished road
Default

Well I get 350KM on a car with 5.5 cylinders! My 92 SE has a 60L tank too.
Old 08-19-2002, 10:49 PM
  #9  
Senior Member
Posts like a Corvette
 
speedyguy's Avatar
 
Join Date: Jan 2002
Location: Cali
Posts: 1,587
Likes: 0
Received 0 Likes on 0 Posts
speedyguy is on a distinguished road
Default

I’m lucky to get a block or two. LOL

Something about my foot…Wait I mean feet. LOL what an image.

TY
Old 08-25-2002, 11:15 AM
  #10  
Junior Member
 
Custom88's Avatar
 
Join Date: Aug 2002
Posts: 0
Likes: 0
Received 0 Likes on 0 Posts
Custom88 is on a distinguished road
Default

You pretty much have to drive these cars on straightaways, with no stopping, or accelerate EXTREMELY slow to get good gas mileage. When I used to drive all highway driving in my LeSabre, I got about 22 MPG (very heavy foot, I floored it about 3 times a day. lol) NOW I drive a whole lot slower, almost like a Grandma (the car loves it though) and now I get about 29MPG. Brother'* 92 gets 31 MPG on the highway, mom'* 95 gets 32. (cruise control set at about 75)
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
mustangman_93
1992-1999
26
02-26-2008 10:31 AM
Nashville Cowboy
General GM Chat
26
02-06-2007 05:23 PM
MOS95B
Lounge
1
02-24-2006 11:44 AM
dbtk2
1992-1999
13
08-19-2004 11:06 PM
Jrios
2000-2005
27
01-08-2003 03:39 PM



Quick Reply: What can I do to improve my gas mileage?



All times are GMT -4. The time now is 10:32 PM.