Go Back   Ford F150 Forum - Community of Ford Truck Fans > Late Model F150s > 2009 - Present Ford F150
Sign in using an external account
Register Forgot Password?


Welcome to F150 Forum!
Welcome to F150 Forum,

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!


Reply
 
 
 
 
Thread Tools Search this Thread Display Modes
Old 02-07-2011, 08:20 PM   #1
Junior Member
 
Join Date: Feb 2011
Posts: 11
Mentioned: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Default I think the MPG rating on 3.5 4x2 is closer to real-world

I've been comparing buying a 3.7 vs a 3.5, I like both the regular cabs & the super cabs, and although I would prefer a regular cab, I think with the kid and all I'll prob get the super.

Looking at the diffs & cab configurations both these engines come in I think the 3.5 SC will get the same if not a tad better MPG then a 3.7 because of the following.

If MPG is computed from typical config (high gear ratio, regular cab short box):

The most gas friendly a 3.7 can be had is in a regular cab with a 6.5' bed and 3.55 non-LSD rated for 17/23. To get a LSD you have to upgrade to 3.73.


The most gas friendly a 3.5 can be had is in a regular cab with a 8' bed and 3.15 non-LSD rated for 16/22. A LSD can bet had in 3.15.

Just roughing in weights based on GVWR-Max Payload I'd guess 8' beds are about 110#s more than 6.5 in a regular cab and supercabs are about 370#s more than regular cabs.

Finally the 3.5 gains roughly 260#s going from RC 8' to SC 6.5, but you can get LSD without having to go to a lower gear so you'll probably be close to the 16/22 still.

The 3.7 gains the full 370#s, and has to go from 3.55 to a 3.73 to get LSD, probably slipping it from 17/23 to 16/22 or even lower like 15/21.

I doubt I'll ever need the tow of the 3.5, but the extra payload & power for prob the listed MPG seems like a no brainer.

What'cha think?
neekofab is offline   Reply With Quote
Old 02-07-2011, 08:20 PM
 
 
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Real World MPG what is it? Teamsobaco 2004 - 2008 Ford F150 34 03-31-2013 07:34 PM
Any real world Mileage reports on the 2011's? FI50 2009 - Present Ford F150 129 10-16-2012 06:11 AM
Real world fuel economy and reviews. HwyCycle Introductions 1 10-15-2010 12:43 AM
Whats it worth "Real World"?? 06H0040 2004 - 2008 Ford F150 18 05-17-2010 08:34 PM
What kind of real world mileage could I expect.... Fish Chris General F150 Discussion 11 04-23-2008 09:35 PM

 

The Mustang Source
All times are GMT -4. The time now is 03:48 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.5.2
Copyright 2006 - 20011 F150forum.com
This site is in no way affiliated with the Ford Motor Company.