10w-30 or 40 - JeepForum.com

 
LinkBack Thread Tools
post #1 of 11 Old 06-04-2012, 03:14 PM Thread Starter
jakesjeepmj1988
Registered User
1988 MJ Comanche 
 
Join Date: Sep 2011
Location: pittsburgh
Posts: 190
10w-30 or 40

So its that time again time for an oil change its sunmer here so im probably going to go with 10w-40 but am not sure what should i run? What do you guys run?

jakesjeepmj1988 is offline  
Sponsored Links
Advertisement
 
post #2 of 11 Old 06-04-2012, 03:19 PM
98muddyjeep
rockin lil red wagon
 
98muddyjeep's Avatar
1998 XJ Cherokee 
 
Join Date: Jun 2008
Location: Hatboro PA
Posts: 1,275
10/30 in the winter and 10/40 in the summer is what i run.

ah,beer the cause of and cure to all of lifes problems ...Homer J Simpson... I am the guy in the red jeep!
98muddyjeep is offline  
post #3 of 11 Old 06-04-2012, 03:21 PM Thread Starter
jakesjeepmj1988
Registered User
1988 MJ Comanche 
 
Join Date: Sep 2011
Location: pittsburgh
Posts: 190
Mine is a straight 6 this might be a dumb question but how much oil do i put in this is my first change in it since ive owned it
jakesjeepmj1988 is offline  
post #4 of 11 Old 06-04-2012, 03:58 PM
cruiser54
Web Wheeler
 
cruiser54's Avatar
1990 MJ Comanche 
 
Join Date: Oct 2009
Location: Prescott
Posts: 11,150
6 quarts. Use Wix or Napa Gold filters. No orange oil filters on 4.0s.
cruiser54 is offline  
post #5 of 11 Old 06-04-2012, 03:59 PM Thread Starter
jakesjeepmj1988
Registered User
1988 MJ Comanche 
 
Join Date: Sep 2011
Location: pittsburgh
Posts: 190
Thanks
jakesjeepmj1988 is offline  
post #6 of 11 Old 06-04-2012, 11:00 PM
Reptile
Web Wheeler
1991 XJ Cherokee 
 
Join Date: Feb 2011
Location: Bakersfield
Posts: 1,297
Quote:
Originally Posted by cruiser54 View Post
6 quarts. Use Wix or Napa Gold filters. No orange oil filters on 4.0s.
This needs correction, Cruiser: no orange oil filters on any engine.
Reptile is offline  
post #7 of 11 Old 06-05-2012, 05:32 AM
cruiser54
Web Wheeler
 
cruiser54's Avatar
1990 MJ Comanche 
 
Join Date: Oct 2009
Location: Prescott
Posts: 11,150
Quote:
Originally Posted by Reptile View Post
This needs correction, Cruiser: no orange oil filters on any engine.
Sorry. You're right.
cruiser54 is offline  
post #8 of 11 Old 06-05-2012, 08:29 AM
Millermagic
Registered User
2000 XJ Cherokee 
 
Join Date: Apr 2007
Location: Syracuse
Posts: 2,027
The 4.0 will run on anything ... as long as there's no coolant in it.

I run Rotella T6 5w40 for 7k miles. Works great.

2000 XJ - 3.5'' Lift & Skinny Mudders.
Previous: A CJ, Few TJs and JK.
Millermagic is offline  
post #9 of 11 Old 06-05-2012, 12:22 PM
bobbo_xj
Registered User
2001 XJ Cherokee 
 
Join Date: Apr 2011
Location: Ridley Park
Posts: 222
The 4.0L I-6 is not too picky between 30 and 40 weight, but sort of a loaded question. Without any background on the engine like miles, past oil type, driving habits, etc., it is tough to offer an oil that may be more suitable than another.

I have been running full synthetic Mobil 1-High Mileage, 10w30 for the last 6 changes now. Just got my UOA from Blackstone that shows low wear (Iron 15 ppm) after 4550 miles and a TBN of 2.9. With easy highway driving about 75% of the time, I plan on stretching to 6000 mi.

2001 XJ Sport, 173k mi.
bobbo_xj is offline  
post #10 of 11 Old 06-05-2012, 01:18 PM
kg4kzv
Registered User
1995 XJ Cherokee 
 
Join Date: Jul 2005
Location: Watauga Tennessee.
Posts: 5,186
Quote:
Originally Posted by bobbo_xj View Post
The 4.0L I-6 is not too picky between 30 and 40 weight, but sort of a loaded question. Without any background on the engine like miles, past oil type, driving habits, etc., it is tough to offer an oil that may be more suitable than another.

I have been running full synthetic Mobil 1-High Mileage, 10w30 for the last 6 changes now. Just got my UOA from Blackstone that shows low wear (Iron 15 ppm) after 4550 miles and a TBN of 2.9. With easy highway driving about 75% of the time, I plan on stretching to 6000 mi.

Do some 4.0s not like synthetic? I put 10-30 Mobil 1 in my 95 4.0 and had to chance the oil again in like 200 miles because it sounded like it was going to rattle itself apart. It was not High mileage Mobil 1 though.

I put 10-30 high mileage dino juice back in no filter change (NAPA gold) and it shut back up after just a few min. running.

I also had a 1600 Suzuki engine that made a lot more noise with synthetic in it than dino juice.

But our Honda Odyssey, 03 Tracker and 4.3 S-10 all run much much smoother with full synthetic oil.


Chris

95 Cherokee SE 4.0, 5-Spd, 8.25;
6.5" Rusty's Lift, Atlas II Rims, 35x12.5x15 Wild Country,Rusty's Tube Bumper, Wilderness Rack
Rock Sliders, K&N Panel Air filter, PSC steering box,
I-ROK reinforcement kit, ORO U-TURN steering kit,Conversion Headlights/Silverstars And too much $$$
kg4kzv is offline  
post #11 of 11 Old 06-05-2012, 01:45 PM
440_Magnum
Registered User
1999 XJ Cherokee 
 
Join Date: Jun 2008
Location: Austin Texas
Posts: 839
Quote:
Originally Posted by jakesjeepmj1988 View Post
So its that time again time for an oil change its sunmer here so im probably going to go with 10w-40 but am not sure what should i run? What do you guys run?
I run Shell Rotella T6 5w40, and change the oil about every 7000 miles. I also use a full-size oil filter since there's room for it. (Purolator PL30001, which is a Motorcraft FL-1A equivalent).

2011 Grand Cherokee Laredo 4x2, 3.6 Pentastar
1999 Cherokee 2door 4x4 5-speed (daughter's)
Two big-block Mopars, Challenger SRT8, and a Ram 1500
2001 Cherokee Sport automatic 4x2 (sold)
440_Magnum is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com 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 e-mail 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.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



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 Off
Pingbacks are On
Refbacks are On

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