Rearend oil question/thoughts - Ford Powerstroke Diesel Forum
Powerstroke.org is the premier Diesel Truck Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 01-05-2013, 10:11 AM
Member
 

Join Date: Oct 2007
Posts: 64
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Rearend oil question/thoughts

Was wondering what you all thought about running 80-90w oil in our rearends versus the 75-140w?

I have ran 80-90w in most of my rear ends but saw that Ford recommends 75-140w.

Would it hurt to run the 80-90? I do a fair amount of pulling with my truck.

Just curious on your thoughts or personal experience. Thanks.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 01-05-2013, 05:46 PM
Compression Ignition Addict
 

Join Date: Jan 2010
Posts: 389
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
I would say that is fine for the front and it depends on which rear axle you have.
Reply With Quote Quick reply to this message
  #3  
Old 01-05-2013, 06:09 PM
Member
 

Join Date: Oct 2007
Posts: 64
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I have a limited slip 4.10 rear end.
Reply With Quote Quick reply to this message
  #4  
Old 01-05-2013, 06:15 PM
Compression Ignition Addict
 

Join Date: Jan 2010
Posts: 389
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Is it a Dana 70, 80 or Ford 10.25?
Reply With Quote Quick reply to this message
  #5  
Old 01-05-2013, 06:34 PM
Member
 

Join Date: Oct 2007
Posts: 64
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Sorry about that, Ford 10.25. Single rear wheel.
Reply With Quote Quick reply to this message
  #6  
Old 01-05-2013, 06:43 PM
Compression Ignition Addict
 

Join Date: Jan 2010
Posts: 389
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
75w140 or 80w140 synthetic required, with additive friction modifier is what I am showing for your rear.
Reply With Quote Quick reply to this message
  #7  
Old 01-05-2013, 06:48 PM
Member
 

Join Date: Oct 2007
Posts: 64
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Ok thanks, but would it hurt to run 80-90w with a friction modifier?
Reply With Quote Quick reply to this message
  #8  
Old 01-05-2013, 07:11 PM
Compression Ignition Addict
 

Join Date: Jan 2010
Posts: 389
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
I would use the synthetic 80w140 with the friction modifier, especially since you stated you tow often.
Reply With Quote Quick reply to this message
  #9  
Old 01-06-2013, 11:09 AM
m j m j is offline
Compression Ignition Addict
 

Join Date: Nov 2012
Posts: 290
Thanks: 0
Thanked 8 Times in 8 Posts
Feedback Score: 0 reviews
I cant see it hurting anything depending on your climate.
80/90 doesnt like cold weather
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

Posting Rules
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On



All times are GMT -8. The time now is 07:46 AM.


Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.1
Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

vB.Sponsors