Notices
Series I Tech Garage The place to discuss anything technical about the RX-8 that doesn't fit into any of the categories below.

Cruising speeds, what speeds gives the best MPG?

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old 03-15-2012, 02:45 PM
  #1  
The darkness lies within
Thread Starter
 
ShadowRotor's Avatar
 
Join Date: Jun 2011
Location: Annapolis
Posts: 48
Likes: 0
Received 0 Likes on 0 Posts
Cruising speeds, what speeds gives the best MPG?

So I've been trying to improve my MPG in my '08 MT. Recently I've driven on three tanks at around 19.5~21 MPG? I've been cursing at 65 MPH and on my last tank at 70 for a while. I want to know what trade off between travel time and MPG provides for the most economical travel, with gas prices being what they are.
Old 03-15-2012, 03:03 PM
  #2  
Registered
iTrader: (2)
 
RIWWP's Avatar
 
Join Date: Oct 2007
Location: Pacific Northwest
Posts: 16,684
Likes: 0
Received 239 Likes on 109 Posts
3rd MPG thread today. Really?

Check out my new owner's thread. I have a chart there.
Old 03-15-2012, 03:19 PM
  #3  
#50
 
bse50's Avatar
 
Join Date: Nov 2007
Location: Caput Mundi
Posts: 7,521
Received 10 Likes on 10 Posts
You should ask yourself why you see that fuel economy first.
Then keep driving in closed loop.
Old 03-15-2012, 04:14 PM
  #4  
The darkness lies within
Thread Starter
 
ShadowRotor's Avatar
 
Join Date: Jun 2011
Location: Annapolis
Posts: 48
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by bse50
You should ask yourself why you see that fuel economy first.
Then keep driving in closed loop.
??? I'm confused
Old 03-15-2012, 06:04 PM
  #5  
Time for boost...
iTrader: (24)
 
RX8Soldier's Avatar
 
Join Date: Jun 2010
Location: Canada
Posts: 5,414
Likes: 0
Received 15 Likes on 14 Posts
try this
Old 03-15-2012, 08:29 PM
  #6  
The darkness lies within
Thread Starter
 
ShadowRotor's Avatar
 
Join Date: Jun 2011
Location: Annapolis
Posts: 48
Likes: 0
Received 0 Likes on 0 Posts
Alright, I understand the concept of closed loop control. Do our cars use it? Can it be installed?
Old 03-15-2012, 09:01 PM
  #7  
Rockie Mountain Newbie
 
Bladecutter's Avatar
 
Join Date: Mar 2011
Location: Denver, CO
Posts: 1,601
Received 28 Likes on 24 Posts
When the car is warmed up, it uses closed loop mode.
As long as you aren't running full throttle, its pretty much going to be in closed loop mode all the time once fully warmed up.

BC.
Old 03-15-2012, 09:03 PM
  #8  
#225 of 1000
iTrader: (7)
 
EricB's Avatar
 
Join Date: Jul 2011
Location: Dirty Jerz
Posts: 2,134
Likes: 0
Received 5 Likes on 5 Posts
cursing at 65MPH isnt going to help your fuel economy.
Old 03-15-2012, 09:19 PM
  #9  
The darkness lies within
Thread Starter
 
ShadowRotor's Avatar
 
Join Date: Jun 2011
Location: Annapolis
Posts: 48
Likes: 0
Received 0 Likes on 0 Posts
Alright, I just thought it would. But what does?
Old 03-15-2012, 09:22 PM
  #10  
Time for boost...
iTrader: (24)
 
RX8Soldier's Avatar
 
Join Date: Jun 2010
Location: Canada
Posts: 5,414
Likes: 0
Received 15 Likes on 14 Posts
^Buying a Prius
Old 03-15-2012, 09:31 PM
  #11  
The darkness lies within
Thread Starter
 
ShadowRotor's Avatar
 
Join Date: Jun 2011
Location: Annapolis
Posts: 48
Likes: 0
Received 0 Likes on 0 Posts
Yup, walked into that one...
Old 03-15-2012, 09:56 PM
  #12  
Time for boost...
iTrader: (24)
 
RX8Soldier's Avatar
 
Join Date: Jun 2010
Location: Canada
Posts: 5,414
Likes: 0
Received 15 Likes on 14 Posts
^I actually lol'd there good job!
Old 03-16-2012, 12:06 AM
  #13  
Out of NYC
iTrader: (1)
 
nycgps's Avatar
 
Join Date: Jun 2005
Location: Planet Earth
Posts: 19,881
Received 31 Likes on 29 Posts
Attached Thumbnails Cruising speeds, what speeds gives the best MPG?-chill.jpg  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
WranglerFan
New Member Forum
9
08-21-2022 01:29 PM
jasonrxeight
RX-8's For Sale/Wanted
2
09-30-2015 01:53 PM
UnrealOne
RX-8's For Sale/Wanted
2
09-30-2015 11:04 AM
Trekk
Series I Tech Garage
12
09-25-2015 03:08 PM
titaneum_grey
Series I Trouble Shooting
3
09-06-2015 10:21 PM



You have already rated this thread Rating: Thread Rating: 0 votes,  average.

Quick Reply: Cruising speeds, what speeds gives the best MPG?



All times are GMT -5. The time now is 05:41 PM.