Jeep Wrangler Forum - Reply to Topic
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > YJ Jeep Wrangler Forum > YJ Tech Forum > 1995 Wrangler YJ 4.0i - which engine oil?

Join Wrangler Forum Today


Thread: 1995 Wrangler YJ 4.0i - which engine oil? Reply to Thread
Title:
  
Message:
Post Icons
You may choose an icon for your message from the following list:
 

Register Now

In order to be able to post messages on the Jeep Wrangler 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:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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.



Additional Options
Miscellaneous Options

Topic Review (Newest First)
03-17-2012 10:03 PM
DirtyRob I always run Rotella in my 4.0's.
03-17-2012 06:14 PM
Ibuildembig I wont ever run syn in my axles, currie did a study saying it actually increased tempuratures in the housing and my buddy who does diffs for a living won't warranty anything that has run in it.

But I do use RP Max-EX p/s fluid
03-17-2012 06:11 PM
Master4th
Quote:
Originally Posted by The Toolman View Post
Awesome reference Master4th

Brand wise, I just tried Royal Purple in mine. With the same weight motor oil as I was running before, there is a 10-15 psi increase in oil pressure. Runs smoother too, very pleased.
I only use Royal Purple Lubricants, Diffs, Transfercase Trans everything. I gained 2mpg just by doing the diffs and trans. Less drag from turning gears equals more gas mileage!
03-17-2012 02:11 PM
The Toolman Awesome reference Master4th

Brand wise, I just tried Royal Purple in mine. With the same weight motor oil as I was running before, there is a 10-15 psi increase in oil pressure. Runs smoother too, very pleased.
03-17-2012 12:11 PM
Master4th 10w30 or 5w30 depending on climate.
03-17-2012 11:45 AM
jonnyboyo
1995 Wrangler YJ 4.0i - which engine oil?

I can't find my handbook , what viscosity do I need for a 4.0i from 1995?

Thanks very much

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


All times are GMT -5. The time now is 01:59 AM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC