Ford Truck Enthusiasts Forums

what's the magic number?

Thread Tools
 
Search this Thread
 
  #1  
Old 03-29-2011, 03:33 PM
2003 f-250's Avatar
2003 f-250
2003 f-250 is offline
Senior User
Thread Starter
Join Date: Mar 2011
Location: ohio
Posts: 161
Likes: 0
Received 1 Like on 1 Post
what's the magic number?
Hi! I was wondering what the magical number was for a 5.4 to obtain maximum fuel mileage?

Thanks,
Robert
 
Reply Like
  #2  
Old 03-29-2011, 04:36 PM
LxMan1's Avatar
LxMan1
LxMan1 is offline
Moderator

Join Date: Dec 2001
Location: Louisville,Ky.
Posts: 22,436
Received 13 Likes on 13 Posts
Number of what?
 
Reply Like
  #3  
Old 03-29-2011, 04:50 PM
2003 f-250's Avatar
2003 f-250
2003 f-250 is offline
Senior User
Thread Starter
Join Date: Mar 2011
Location: ohio
Posts: 161
Likes: 0
Received 1 Like on 1 Post
engine rpms.....made perfect sense in my mind lol!
thanks,
robert
 
Reply Like
  #4  
Old 03-30-2011, 08:34 AM
LxMan1's Avatar
LxMan1
LxMan1 is offline
Moderator

Join Date: Dec 2001
Location: Louisville,Ky.
Posts: 22,436
Received 13 Likes on 13 Posts
Around 2000 - 2500 cruising seemed to work for me. Keeps it in a good torque range.
 
Reply Like
  #5  
Old 03-30-2011, 05:00 PM
2003 f-250's Avatar
2003 f-250
2003 f-250 is offline
Senior User
Thread Starter
Join Date: Mar 2011
Location: ohio
Posts: 161
Likes: 0
Received 1 Like on 1 Post
hmm.....guess that I'll have to do some driving on the interstate because 70 mph is about 2000 rpm! Maybe I should leave it out of over drive....
 
Reply Like
  #6  
Old 03-31-2011, 03:13 PM
bigblue61's Avatar
bigblue61
bigblue61 is offline
Senior User
Join Date: Apr 2010
Location: Taxachusetts
Posts: 345
Likes: 0
Received 0 Likes on 0 Posts
for fuel economy ive found about 1700rpms is the best I can do while still getting there with some speed, thats traveling about 57mph with 3.73s and 265s. Obviously this only works on roads with lower speed limits
 
Reply Like
Tags
Back to Subforum
Modular V8 (4.6L, 5.4L)
View Next Unread
Help Please




Advanced Search
Reply Closed Thread Share
Forum Jump

All times are GMT -5. The time now is 05:35 AM.