Rearend oil question/thoughts - Ford Powerstroke Diesel Forum
User Tag List

 
LinkBack Thread Tools Display Modes
post #1 of 9 Old 01-05-2013, 10:11 AM Thread Starter
Member
 
wild stroker's Avatar
 
Join Date: Oct 2007
Posts: 64
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
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.

97 F-250
4x4
5 spd manual
3'' downpipe with straight pipe
DIY intake
boost & pyro gauges
DIY AIC mod
Superduty Cab lights
Dana 60 swap front
4.10 gears
wild stroker is offline  
Sponsored Links
Advertisement
 
post #2 of 9 Old 01-05-2013, 05:46 PM
Compression Ignition Addict
 
Join Date: Jan 2010
Posts: 443
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 0 reviews
I would say that is fine for the front and it depends on which rear axle you have.

Chris
1984 F-350 XLT 4x4 4spd. 6.9 (project)
1996 F-250 XLT 4x4 5spd. 7.3
2001 Excursion XLT 4x4 Auto 7.3
AMSOILdealer is offline  
post #3 of 9 Old 01-05-2013, 06:09 PM Thread Starter
Member
 
wild stroker's Avatar
 
Join Date: Oct 2007
Posts: 64
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I have a limited slip 4.10 rear end.

97 F-250
4x4
5 spd manual
3'' downpipe with straight pipe
DIY intake
boost & pyro gauges
DIY AIC mod
Superduty Cab lights
Dana 60 swap front
4.10 gears
wild stroker is offline  
post #4 of 9 Old 01-05-2013, 06:15 PM
Compression Ignition Addict
 
Join Date: Jan 2010
Posts: 443
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 0 reviews
Is it a Dana 70, 80 or Ford 10.25?

Chris
1984 F-350 XLT 4x4 4spd. 6.9 (project)
1996 F-250 XLT 4x4 5spd. 7.3
2001 Excursion XLT 4x4 Auto 7.3
AMSOILdealer is offline  
post #5 of 9 Old 01-05-2013, 06:34 PM Thread Starter
Member
 
wild stroker's Avatar
 
Join Date: Oct 2007
Posts: 64
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Sorry about that, Ford 10.25. Single rear wheel.

97 F-250
4x4
5 spd manual
3'' downpipe with straight pipe
DIY intake
boost & pyro gauges
DIY AIC mod
Superduty Cab lights
Dana 60 swap front
4.10 gears
wild stroker is offline  
post #6 of 9 Old 01-05-2013, 06:43 PM
Compression Ignition Addict
 
Join Date: Jan 2010
Posts: 443
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 0 reviews
75w140 or 80w140 synthetic required, with additive friction modifier is what I am showing for your rear.

Chris
1984 F-350 XLT 4x4 4spd. 6.9 (project)
1996 F-250 XLT 4x4 5spd. 7.3
2001 Excursion XLT 4x4 Auto 7.3
AMSOILdealer is offline  
post #7 of 9 Old 01-05-2013, 06:48 PM Thread Starter
Member
 
wild stroker's Avatar
 
Join Date: Oct 2007
Posts: 64
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
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?

97 F-250
4x4
5 spd manual
3'' downpipe with straight pipe
DIY intake
boost & pyro gauges
DIY AIC mod
Superduty Cab lights
Dana 60 swap front
4.10 gears
wild stroker is offline  
post #8 of 9 Old 01-05-2013, 07:11 PM
Compression Ignition Addict
 
Join Date: Jan 2010
Posts: 443
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 0 reviews
I would use the synthetic 80w140 with the friction modifier, especially since you stated you tow often.

Chris
1984 F-350 XLT 4x4 4spd. 6.9 (project)
1996 F-250 XLT 4x4 5spd. 7.3
2001 Excursion XLT 4x4 Auto 7.3
AMSOILdealer is offline  
post #9 of 9 Old 01-06-2013, 11:09 AM
m j
Compression Ignition Addict
 
Join Date: Nov 2012
Posts: 298
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
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

1997 F250 rclb 4x4, Comp910s, SRP1.1, Irate T4 s468,FullForce 350/200, homebrew efuel with i̶n̶ ̶t̶a̶n̶k̶ ̶a̶e̶r̶o̶m̶o̶t̶i̶v̶e̶ ̶1̶1̶1̶4̶2̶ A1000 5/8" drawstraw, Diesel Innovations fuel rail feed fittings, balljoint D60f Detroit Locker, zf5 sachs K70263-01CB ceramic clutch , Grizzly locker 10.25, 315/75/16 Wrangler MT/Windowed 7.3 Oct 9/14
m j is offline  
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:
OR

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
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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

 
For the best viewing experience please update your browser to Google Chrome