Jeep Cherokee Forum

Go Back   Jeep Cherokee Forum > Technical Discussion > OEM Cherokee Tech
Register Forgot Password?
Register Photos FAQ Members List Social Groups Search Today's Posts Mark Forums Read GarageVendor DirectoryvBLive
Search

Welcome to Cherokee Forum!
Welcome to Cherokee 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
 
 
 
submit to reddit
 
Thread Tools Search this Thread Display Modes
Old 06-27-2010, 12:09 AM   #1
Member
 
perez1989's Avatar
 
Join Date: Feb 2010
Location: Pharr, Texas
Posts: 194

View perez1989's Photo Album My Photos
1989 Cherokee
Send a message via MSN to perez1989 Send a message via Yahoo to perez1989
Default What Oil Weight

I just changed the oil on my 89 Jeep, got some Quakerstate 20W-50 and now it sounds like a diesel. Oil pressure is at 80 when it use to be 60. What oil should I put in it?
__________________
1989 Jeep Cherokee Laredo
4.0L Automatic 4wd
perez1989 is offline   Reply With Quote
Old 06-27-2010, 12:22 AM   #2
Registered Users
 
Join Date: Dec 2009
Posts: 2,657

View jmm0122's Photo Album My Photos
Default

Quote:
Originally Posted by perez1989 View Post
I just changed the oil on my 89 Jeep, got some Quakerstate 20W-50 and now it sounds like a diesel. Oil pressure is at 80 when it use to be 60. What oil should I put in it?
I run 10w-40 unless 10w-30 is on sale.
jmm0122 is offline   Reply With Quote
Old 06-27-2010, 01:12 AM   #3
Honorary Moderator
 
96_xj's Avatar
 
Join Date: Mar 2010
Location: Gilbert AZ/Las Cruces NM
Posts: 8,134

View 96_xj's Photo Album My Photos
1996 Cherokee
Default

DO NOT RUN ANYTHING THAT IS HIGHER THAN AN xxW-30 the -30 at the end of the oil marking is what viscosity it is at operating temp. The reason it sounds like a diesel is because your oil is not viscous enough at operating temp.

some people run a diesel oil due to the zinc content in the oil is great for our flat tap cams.

run a 10w-30 or preferably a 0w30...

The 10w- or 0w- in front means what viscosity it is at on start up (32* industry standard). 10w is farther from the proper operating viscosity on start up, 0w is closer to operating temp viscosity on start up, providing better wear protection on start up.

It is not going to do anything to harm your engine running a 0w-30 infact it will help it. where as a 10w-40 or a 20w-50 will harm your engine.


also do not add any engine additives. They do not do your engine any good. they are a bandaid to an underlying problem.
__________________

SITE RULES
Project Black Sky
1996 2-door
4.0 - AX-15 - NP231 - 35x12.5" Baja Claws - lots of engine add ons - and lots of goodies (but not enough...)
Homemade Roof Rack
custom 3/8" front bumper


hard work and respect get you nowhere in todays life... what a shame maybe someday society will become less selfish

selfless over selfish
96_xj is offline   Reply With Quote
Old 06-27-2010, 06:41 AM   #4
Registered Users
 
Join Date: Sep 2009
Location: morrisonville ny
Posts: 1,371

View rich's Photo Album My Photos
2000 @ 1994 givin away Cherokee
Send a message via Yahoo to rich
Default

10w30 or 10w 40 oil,some guys say 15w 40 or 20w50 thats fine if your motor is wore out that much to need it,If the oil is too thick for the motor it will chatter terrible .Castrol,mobil mopar oil all good to use

Last edited by rich; 06-27-2010 at 06:48 AM.
rich is offline   Reply With Quote
Old 06-27-2010, 06:45 AM   #5
Registered Users
 
Join Date: Sep 2009
Location: morrisonville ny
Posts: 1,371

View rich's Photo Album My Photos
2000 @ 1994 givin away Cherokee
Send a message via Yahoo to rich
Default

For zinc just add a can of stp oil treatment,its the same thing.(read the bottle first before you say anything stupid please).I m just saying so we dont have a post full of uninformed posts.
rich is offline   Reply With Quote
Old 06-27-2010, 11:11 AM   #6
Member
 
perez1989's Avatar
 
Join Date: Feb 2010
Location: Pharr, Texas
Posts: 194

View perez1989's Photo Album My Photos
1989 Cherokee
Send a message via MSN to perez1989 Send a message via Yahoo to perez1989
Default

Ok thanks for the information. Gonna have to change the oil again today.
__________________
1989 Jeep Cherokee Laredo
4.0L Automatic 4wd
perez1989 is offline   Reply With Quote
Old 06-27-2010, 12:08 PM   #7
CF Veteran
 
Join Date: Apr 2008
Location: Northern Illinois
Posts: 2,226

View whowey's Photo Album My Photos
90 Cherokee
Default

Op... One of the BIG considerations for your oil weight, is your intended usage and the environment you live in.

Seeing how you live so far south, there is absolutely no reason for you to run anything with a 0W-xx. A multi-weight oil in such a viscosity is intended for folks living in the northerly climates where we see days when the starting temps are close to 0 degrees.

Yes... the 0,5,10,20,30 in front of the w is the cold weather viscosity. But its based on 0 degrees. An oil with a 10w viscosity is close to the same viscosity of a SAE 10 at 0 degrees. The advantage of this is in cold start conditions the oil flows fairly quickly. And a 10w is less viscous than a 20w oil in those conditions.

Now there are other considerations to look at. As your oil ages in the engine. Some of the additives break down and are able to do less work. Multi-weight oils(10w-30, etc.) have an additional additive class called viscosity modifiers in them. A single weight oil (SAE 30) do not carry much if any vicosity modifiers. And oils with a larger spread on the viscosity (5w-40,etc.) have a larger percentage of these additives than oils with smaller ones(5w-20). The oils with the large spreads will tend to break down more quickly due to this.
__________________
AMSOIL independent dealer
Contact me for individual project pricing
whowey is offline   Reply With Quote
Old 06-27-2010, 12:41 PM   #8
CF Veteran
 
trans_am7935's Avatar
 
Join Date: May 2009
Location: San Antonio, TX
Posts: 1,792

View trans_am7935's Photo Album My Photos
1994 Cherokee
Default

wow this thread is awesome....and at the same time way over my head. i use 10w-40. i like it the best. i live in California where it is always hot so i like the little heavier weight.
__________________
<Build Thread> / <YouTube Page> / <FQUICK>
1994 Jeep Cherokee 4x4 5 speed 4.0 H.O. flex headers, Flowmaster cat back, Magnaflow cat, stock clutch, K&N, 6.5" Rusty's lift w/ RC long arm, 35" mudders, Bushwackers, JCR Stage 3 Sliders, ORO U-turn Steering, Dana 44, Detroit locker, Dana 30 HP Detroit Tru trac, 4.56 gears, 136amp alt, Camo Paint
trans_am7935 is offline   Reply With Quote
Old 06-27-2010, 04:21 PM   #9
Member
 
perez1989's Avatar
 
Join Date: Feb 2010
Location: Pharr, Texas
Posts: 194

View perez1989's Photo Album My Photos
1989 Cherokee
Send a message via MSN to perez1989 Send a message via Yahoo to perez1989
Default

Well changed the oil today and now she sounds back to normal. Had to get the 10W-40
__________________
1989 Jeep Cherokee Laredo
4.0L Automatic 4wd
perez1989 is offline   Reply With Quote
Old 06-27-2010, 05:16 PM   #10
CF Veteran
 
djb383's Avatar
 
Join Date: Nov 2009
Location: The Republic of TEXAS
Posts: 7,076

View djb383's Photo Album My Photos
1998 Cherokee
Default

Quote:
Originally Posted by perez1989 View Post
I just changed the oil on my 89 Jeep, got some Quakerstate 20W-50 and now it sounds like a diesel. Oil pressure is at 80 when it use to be 60. What oil should I put in it?
http://www.supramania.com/aehaas/

Read some motor oil facts, not fiction, in the above link. The lower the first number, the better it is for your engine. 80 psi is just robbing horsepower. Motor oil myths are already prevalent in this thread.
djb383 is offline   Reply With Quote
Old 06-27-2010, 06:50 PM   #11
Senior Member

 
The Black's Avatar
 
Join Date: Apr 2009
Location: New Waverly, Tx
Posts: 951

View The Black's Photo Album My Photos
1997 Cherokee
Default

Quote:
Originally Posted by djb383 View Post
http://www.supramania.com/aehaas/

Read some motor oil facts, not fiction, in the above link. The lower the first number, the better it is for your engine. 80 psi is just robbing horsepower. Motor oil myths are already prevalent in this thread.
So far I have read Motor oil 101 to 104. Fascinating info. Thanks for the link.
__________________
I don't have to run faster than the lion.
I just have to run faster than you.
The Black is offline   Reply With Quote
Old 06-27-2010, 07:15 PM   #12
Member
 
ki4dmh's Avatar
 
Join Date: May 2010
Location: North East Ga.
Posts: 101

View ki4dmh's Photo Album My Photos
1987 Cherokee
Default

I use 10-30 in all my vehicles
ki4dmh is offline   Reply With Quote
Old 06-27-2010, 07:22 PM   #13
CF Veteran
 
djb383's Avatar
 
Join Date: Nov 2009
Location: The Republic of TEXAS
Posts: 7,076

View djb383's Photo Album My Photos
1998 Cherokee
Default

Quote:
Originally Posted by ki4dmh View Post
I use 10-30 in all my vehicles
5W30 would be better as it will flow faster at less than normal operating temp and is the same vis as 10W30 or straight 30 at normal operating temp.
djb383 is offline   Reply With Quote
Old 06-27-2010, 07:22 PM
 
 
 
submit to reddit
Reply
Go Back   Jeep Cherokee Forum > Technical Discussion > OEM Cherokee Tech



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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
4.0/AW4 weight. ZachsXJ OEM Cherokee Tech 3 05-10-2010 09:38 PM
max tounge weight/towing weight 88GTBlack OEM Cherokee Tech 3 04-11-2010 03:54 PM
weight 90creeper OEM Cherokee Tech 6 03-27-2010 09:16 PM
which weight? greythunder3 OEM Cherokee Tech 1 02-16-2010 12:33 AM
oil weight goobs_63 OEM Cherokee Tech 28 01-17-2010 06:32 AM


All times are GMT -5. The time now is 11:31 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.5.2
This site is in no way affiliated with Jeep or Chrysler.

Emails Backup