258 with 140k and knock. Oil weight question. Timatoe this ones for you lol - JeepForum.com
LinkBack Thread Tools
post #1 of 2 Old 07-02-2011, 09:07 PM Thread Starter
Registered User
1987 YJ Wrangler 
Join Date: Jan 2011
Location: Lotus/Placerville
Posts: 272
258 with 140k and knock. Oil weight question. Timatoe this ones for you lol

Ok so as I said I have a 258 with 140k miles on it and a knock. I've heard that my knock is a collapsed lifter, piston slap, timing chain, valve tick and so on. Can't track the knock down but I've got good compression and good oil pressure as well so I'm not too worried. I've been running 15w40 Delo in this thing for about 1000 miles and it is black so I'm gonna do an oil change. I was curious if I would be fine switching over to 20w40 or 20w50 to help quiet her down a bit and get her lubed pretty good? Also the temps here at the moment are consistently between 60-70F at 6am and 90-105F by noon. In the winter the temps can get below 20F so I would obviously be switching over to 10w30 in the winter. Thanks again y'all for your help.

Timatoe or Mr. B live near here so what's your input fellas?

Robert Jordan
GenRight Off Road

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Cell: (714) 878-0234
RobertJ is offline  
Sponsored Links
post #2 of 2 Old 07-02-2011, 09:17 PM
Registered User
1991 YJ Wrangler 
Join Date: Sep 2010
Location: Calgary
Posts: 108
If your throwing new oil in try shell rotella 15 30, had awesome experiences with it. Has quieted down two jeep I have owned and my friends sisters. I can't remember the technical of it but there's tons of info out on it.
Your definitely fine in that weather, I ran my Cherokee in -20c and it would still start.

Also try a napa gold filter they're alot better than fram.
UboatCmdr is offline  

Quick Reply

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:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.

Email Address:


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
Knock Knock? exhaust, rod, or piston slap. mitchf350 TJ Wrangler Technical Forum 6 09-17-2010 09:05 AM
Knock, Knock whos there? chunks of piston DV8 TJ Wrangler Technical Forum 21 09-17-2009 07:53 AM
loud knock knock knock...noise when backing up shea666 TJ Wrangler Technical Forum 5 05-30-2009 12:10 PM
neglected jeep, 140k, what to do? nashvillwill TJ Wrangler Technical Forum 20 12-16-2008 02:06 PM
140K miles . . . What repairs to look for? live2hunt TJ Wrangler Technical Forum 4 11-12-2007 11:12 AM

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