HELP! If you have an EMERGENCY situation with your truck, or you need IMMEDIATE technical help, use this board.

rpms for best fuel economy

Thread Tools
 
Search this Thread
 
Old Jun 11, 2004 | 06:29 PM
  #1  
mr T's Avatar
Thread Starter
Registered User
 
Joined: Mar 2004
Posts: 1,488
Likes: 0
From: Austin, TX, Toronto, ON
rpms for best fuel economy

got a 95 with an auto...whats the best rpms to try and drive it at to get the most mileage out of it and to keep the tranny in good shape??..i like to keep it around 1700-1800 rpms whereever i am or whatever gear....is that too low?...i like it
Reply
Old Jun 11, 2004 | 07:43 PM
  #2  
4doogie's Avatar
Registered User
 
Joined: Dec 2003
Posts: 402
Likes: 0
From: north cali
You first need to say what rear end gear ratio you have 4:10 or 3:73 that changes things. chris
Reply
Old Jun 11, 2004 | 07:53 PM
  #3  
Shovelhead's Avatar
Administrator / Scooter Bum
 
Joined: Sep 2002
Posts: 9,086
Likes: 49
From: Central VA
The Cummins "Happy Spot" is 1800 - 2100 RPM.
Reply
Old Jun 11, 2004 | 08:01 PM
  #4  
MnTom's Avatar
Registered User
 
Joined: Nov 2002
Posts: 1,234
Likes: 0
From: outside of Duluth MN
Hey 4doogie he would have either 4:10 or 3:54 gears. The third gens have the 3:73 gears. I wish I had 3:73s. Since mr T said he runs at about 1700 to 1800 rpm he probably has the 3:54 gears. Shovelhead hit it right. Keep the rpms where he said and you will see the best economy.
Tom
Reply
Old Jun 11, 2004 | 08:27 PM
  #5  
infidel's Avatar
Registered User
 
Joined: Dec 2003
Posts: 14,672
Likes: 9
From: Montana
My '95 auto's mpgs go downhill fast over 2000 rpm. This is 73 mph with my 3.54 rearend.
Reply
Old Jun 11, 2004 | 11:54 PM
  #6  
4doogie's Avatar
Registered User
 
Joined: Dec 2003
Posts: 402
Likes: 0
From: north cali
my bad i thought i might have been wrong thanks, i knew it was 3.73 or 3.54 oops!!
chris
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
MikeyB
3rd Gen Engine and Drivetrain -> 2003-2007
32
Nov 9, 2006 08:04 AM
cromulius
3rd Gen High Performance and Accessories (5.9L Only)
14
Jun 11, 2006 09:52 AM
Katmandu
Performance and Accessories 2nd gen only
12
Feb 13, 2006 04:38 PM
johnr9q
Performance and Accessories 2nd gen only
5
Apr 25, 2004 12:18 AM




All times are GMT -5. The time now is 09:24 AM.