What oil grade should I use? - JeepForum.com

 
LinkBack Thread Tools
post #1 of 11 Old 08-24-2008, 10:09 PM Thread Starter
Clem82389
Registered User
 
Join Date: Jun 2007
Location: sc
Posts: 3
What oil grade should I use?

I have a 1982 CJ7 258 with 125,000 miles. Slight oil leak around the head and oil pan. Oil pressure is 55 when I crank it and 25 when it gets hot. No knocks. What oil grade should I use. I live in sunny SC.

Clem82389 is offline  
Sponsored Links
Advertisement
 
post #2 of 11 Old 08-24-2008, 10:20 PM
DirtEater
Registered User
1982 CJ7 
 
Join Date: May 2007
Location: Okie City, OK
Posts: 306
I had slight oil leak, and a mechanic that I trust recommended Rotella 15W40 for old motors, and I kind of took his advice. I have 145K, and I changed the oil with Delo 15W40, and you know what? He was right. I barely get a small drop of oil once in awhile. Sure, some smartypants here will say something like "there's no such thing as a mechanic in a bottle". But all I can say is, the 15W40 is working out fine in my '82 CJ7 258 and I'll likely continue using it.

Terry ~ USN Ret. 30Sep07 : )
1982 CJ7 4.2L ~ T-999 ~ Dana 300 ~ SOA Conversion
Dana 30/AMC 20 with Truetrac - one piece axle - 4.10's
33" Toyo M/T's on Pro Comp Xtreme Series 1069
Borla header and Catback Exhaust System
Jeeperman bumper w/ Ramsey Patriot 8000 - Jeeperman tire carrier/bumper
DirtEater is offline  
post #3 of 11 Old 08-24-2008, 10:22 PM
DirtEater
Registered User
1982 CJ7 
 
Join Date: May 2007
Location: Okie City, OK
Posts: 306
Oh, and be sure to snug the oil pan bolts.

Terry ~ USN Ret. 30Sep07 : )
1982 CJ7 4.2L ~ T-999 ~ Dana 300 ~ SOA Conversion
Dana 30/AMC 20 with Truetrac - one piece axle - 4.10's
33" Toyo M/T's on Pro Comp Xtreme Series 1069
Borla header and Catback Exhaust System
Jeeperman bumper w/ Ramsey Patriot 8000 - Jeeperman tire carrier/bumper
DirtEater is offline  
post #4 of 11 Old 08-24-2008, 10:29 PM Thread Starter
Clem82389
Registered User
 
Join Date: Jun 2007
Location: sc
Posts: 3
thanks for the quick reply. I'll try it.
Clem82389 is offline  
post #5 of 11 Old 08-24-2008, 10:32 PM
DirtEater
Registered User
1982 CJ7 
 
Join Date: May 2007
Location: Okie City, OK
Posts: 306
If you decide on the Delo, you can get it at ChinaMart for about $10 gal. The oil change is 6 qts total. I bought 2 gallons and have 2 quarts left over for next change.

Terry ~ USN Ret. 30Sep07 : )
1982 CJ7 4.2L ~ T-999 ~ Dana 300 ~ SOA Conversion
Dana 30/AMC 20 with Truetrac - one piece axle - 4.10's
33" Toyo M/T's on Pro Comp Xtreme Series 1069
Borla header and Catback Exhaust System
Jeeperman bumper w/ Ramsey Patriot 8000 - Jeeperman tire carrier/bumper
DirtEater is offline  
post #6 of 11 Old 08-24-2008, 10:34 PM
SuB8HaVeN
Registered User
1986 CJ7 
 
Join Date: Dec 2006
Location: Tampa, FL
Posts: 2,287
Snug the bolts, don't get them too tight or you will pinch the cork gasket and it will be leaking a LOT more. I think those bolts are only supposed to be torqued down to 10ft-lb, someone correct me if I'm wrong. It may be your rear main seal leaking and could also (probably) be the back of your valve cover leaking. Same thing with the valve cover, if you tighten too much it will pinch the cork gasket and leak rivers.

I run Penzoil Long-Life 15W-40 diesel oil. I would recommend running either the Rotella as mentioned above or the Penzoil Long-Life.

1986 Jeep CJ7 4.2L I6 T176 (restoration in progress)
1961 Willys 4x4 Wagon L-226 I6 T90 (restoration also in progress)
SuB8HaVeN is offline  
post #7 of 11 Old 08-24-2008, 10:39 PM
DirtEater
Registered User
1982 CJ7 
 
Join Date: May 2007
Location: Okie City, OK
Posts: 306
Why not Delo? Not near as stinky as Rotella. That is THE smelliest oil I tried in my Dodge/Cummins HD. It's nickname of Rosmella is fitting.

Terry ~ USN Ret. 30Sep07 : )
1982 CJ7 4.2L ~ T-999 ~ Dana 300 ~ SOA Conversion
Dana 30/AMC 20 with Truetrac - one piece axle - 4.10's
33" Toyo M/T's on Pro Comp Xtreme Series 1069
Borla header and Catback Exhaust System
Jeeperman bumper w/ Ramsey Patriot 8000 - Jeeperman tire carrier/bumper
DirtEater is offline  
post #8 of 11 Old 08-24-2008, 10:40 PM
SuB8HaVeN
Registered User
1986 CJ7 
 
Join Date: Dec 2006
Location: Tampa, FL
Posts: 2,287
I've never heard of Delo before, but really any diesel rated oil is going to have those extra additives and that's the key.

1986 Jeep CJ7 4.2L I6 T176 (restoration in progress)
1961 Willys 4x4 Wagon L-226 I6 T90 (restoration also in progress)
SuB8HaVeN is offline  
post #9 of 11 Old 08-24-2008, 10:50 PM
DirtEater
Registered User
1982 CJ7 
 
Join Date: May 2007
Location: Okie City, OK
Posts: 306
Chevron "Delo" and Shell "Rotella" are the 2 most popular Diesel oils. I prefer Delo simply because it's not as stinky.

Terry ~ USN Ret. 30Sep07 : )
1982 CJ7 4.2L ~ T-999 ~ Dana 300 ~ SOA Conversion
Dana 30/AMC 20 with Truetrac - one piece axle - 4.10's
33" Toyo M/T's on Pro Comp Xtreme Series 1069
Borla header and Catback Exhaust System
Jeeperman bumper w/ Ramsey Patriot 8000 - Jeeperman tire carrier/bumper
DirtEater is offline  
post #10 of 11 Old 08-25-2008, 07:23 AM
JeepHammer
Running On Empty...
1973 CJ5 
 
Join Date: Aug 2007
Location: South West Indiana
Posts: 11,180
If you go to a high detergent oil, like Shell Rotella 15W40 or Valvoline 15W40, or Delvac or any of the other brands...

MAKE SURE YOU CHANGE YOUR OIL FILTER ABOUT EVERY 1,000 Miles for the first 5,000 miles or so!
That high detergent oil is going to scrub a LOT of crud loose in the engine, and you REALLY want to change that filter before it plugs up and the bypass opens returning that crap to the engine!
JeepHammer is offline  
post #11 of 11 Old 08-25-2008, 07:42 PM
mfaile
Registered User
1981 CJ7 
 
Join Date: Apr 2007
Location: Columbia, SC
Posts: 4
Use baby oil

That Jeep of yours, as you call it, is really your wifes, it will run and look much better if you use baby oil......
mfaile 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



Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
grade my improvement? sakisaki400 Jeep CJ Forum 14 11-09-2008 08:53 PM
ignition up-grade hwyjeeper Jeep CJ Forum 4 10-17-2008 04:14 AM
Steering Box Up grade? elks96 Jeep CJ Forum 6 07-06-2008 11:48 AM
Grade of Gasoline jjustice08 Jeep CJ Forum 20 05-05-2008 10:48 AM
Grade 8 VS Stainless? fluid_grind Jeep CJ Forum 2 02-24-2007 02:50 PM

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