gas mileage - GM Forum - Buick, Cadillac, Olds, GMC & Pontiac chat

General GM Chat When starting new posts, please specify YEAR, MAKE, MODEL, ENGINE type, and whatever modifications you have made. Chat about all things GM (and related cars). Off-topic stuff should be in the Lounge, and all Model specific mechanical problems should be posted in the proper forum.
Sponsored by:
Sponsored by:

gas mileage

Reply

 
 
 
Old 12-31-1969, 08:00 PM
  #1  
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Apr 2002
Posts: 14
Thanks: 0
Thanked 0 Times in 0 Posts
durbancic is on a distinguished road
Default

at what speed would you get the best gas mileage on the freeway, keeping rates of acceleration and hills, and all of the other options the same? 65, 75, or 85? at 65, you will be covering ground slower than at 85, but you will have less rpm'*, and less air drag. at 85, you will be making ground a lot quicker, but have higher rpm'* and air drag.
durbancic is offline  
Reply With Quote
Old 12-31-1969, 08:00 PM
  #2  
Senior Member
Posts like a Supercharger
 
Join Date: Apr 2002
Posts: 159
Thanks: 0
Thanked 0 Times in 0 Posts
Greg is on a distinguished road
Default

80 km/h... just enough for the OD + TCC to engage.

_________________
1992 Bonneville SE
~245,000 km

<font size=-1>[ This Message was edited by: Greg on 2002-05-01 22:11 ]</font>
Greg is offline  
Reply With Quote
Old 12-31-1969, 08:00 PM
  #3  
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Apr 2002
Posts: 14
Thanks: 0
Thanked 0 Times in 0 Posts
durbancic is on a distinguished road
Default

i was wondering about mph, not k/h, sorry
durbancic is offline  
Reply With Quote
Old 12-31-1969, 08:00 PM
  #4  
Senior Member
Posts like a Turbo
 
Join Date: Jan 2002
Location: Torrington, CT
Posts: 267
Thanks: 0
Thanked 0 Times in 0 Posts
csprague is on a distinguished road
Default

About 55mph.
csprague is offline  
Reply With Quote
Old 04-03-2004, 01:03 AM
  #5  
Senior Member
True Car Nut
 
Join Date: Jan 2004
Location: Lakeville, MN
Posts: 4,328
Thanks: 0
Thanked 1 Time in 1 Post
fantastic88 is on a distinguished road
Default

My car locks up @ 46mph, but its kind of jerky when it does.
fantastic88 is offline  
Reply With Quote
Old 04-03-2004, 08:24 PM
  #6  
Senior Member
Posts like a Corvette
 
Join Date: Oct 2002
Location: N.W. Indiana
Posts: 1,206
Thanks: 0
Thanked 0 Times in 0 Posts
Roadrash187 is on a distinguished road
Default

I would anywhere from 55 to 65 mph.
Roadrash187 is offline  
Reply With Quote
Old 04-05-2004, 06:28 AM
  #7  
Senior Member
True Car Nut
 
Join Date: Jun 2003
Location: Purgatory
Posts: 6,313
Thanks: 0
Thanked 0 Times in 0 Posts
PontiacDad is on a distinguished road
Default

A constant speed of 55-65 will yield the best milage. Quick accelerating and stop and go will eat at the fuel economy.
PontiacDad is offline  
Reply With Quote
 
 
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Nashville Cowboy
General GM Chat
26
02-06-2007 06:23 PM
Greg
1992-1999
10
01-12-2004 10:27 PM
kimmers
1992-1999
1
11-10-2002 12:42 AM
G2SSEi95
1992-1999
10
11-01-2002 02:46 AM
Blk_Bonneville
1987-1991
9
08-25-2002 12:15 PM


Thread Tools
Search this Thread
Quick Reply: gas mileage


Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

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.