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Unread 06-30-2011, 08:27 PM   #1
95_Sahara
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What Type of Oil Do You Run In Your 4.0L?

Just curious what different people are running in their 4.0L's. I remember someone told me years back that by running 5w30 and little adjustment you can get rid of the typical "ticking" or "knocking" that the 4.0L makes well running. Anyways I tried searching the forum. Just curious if anyone isn't running 10w30 and why?

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Unread 06-30-2011, 08:38 PM   #2
jeepyj13
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i run 10w-30 high mileage in my 4.0L the ticking noise grew on me plus it sounds like diesel i read somewhere the ticking noise is hard to rid of the 4.0 always made a ticking noise for some reason idk.
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Unread 06-30-2011, 08:48 PM   #3
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i run 10w-30 full synthetic
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Unread 06-30-2011, 09:02 PM   #4
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royal purple 10w30. 280,XXX miles and no ticking or leaking.
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Unread 06-30-2011, 09:22 PM   #5
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Quote:
Originally Posted by mazyj View Post
royal purple 10w30. 280,XXX miles and no ticking or leaking.

How often do you change it?
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Unread 06-30-2011, 10:02 PM   #6
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10w30 Mobil 1, oil changed @ 7,500 miles.
Also run full synthetic in the diffs, tranny, xcase and PS. I picked up an honest 2mpg.
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Unread 06-30-2011, 10:30 PM   #7
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Quote:
Originally Posted by 95_Sahara View Post
How often do you change it?
I try to do it every 5,000 miles. IMO well worth the (slight) increase in cost.
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Unread 07-01-2011, 07:04 AM   #8
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I run...

Rotella 10W30....says it's a synthetic blend...
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Unread 07-01-2011, 07:44 AM   #9
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Grade A Autozone or O'Reilly's 10W-30.
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Unread 07-01-2011, 09:52 AM   #10
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Valvoline 10w-30
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Unread 07-01-2011, 10:16 AM   #11
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Whatever is on sale at WalMart. 5w30 winter and 10w40 summer.

It's just oil, the brand is not as important as regular changes every 3-4,000 miles.
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Unread 07-01-2011, 10:54 AM   #12
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Mobil 1 High Mileage 10w40 every 5K. Transmission and diffs are all Redline and the 231 is Castrol Synthetic atf+4
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Unread 07-01-2011, 11:06 AM   #13
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Quote:
Originally Posted by Louie4 View Post
Grade A Autozone or O'Reilly's 10W-30.
This. 1 through 10.
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Unread 07-01-2011, 06:49 PM   #14
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Quote:
Originally Posted by CJ7-Tim View Post
Whatever is on sale at WalMart. 5w30 winter and 10w40 summer.

It's just oil, the brand is not as important as regular changes every 3-4,000 miles.
Well that is sorta right it's not the oil it the additives they add. Now what is more important is the oil filter.

You can buy the most expensive oil out there with the best performance ratings without the oil filter that will clean it up you have just wasted your money. So if you are looking at what to spend your money on buy the best filter you can find and the cheapest good quality oil can get then you will have the winning formula. Do not buy those $4-7 filters spend a little more there.
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Unread 07-01-2011, 06:53 PM   #15
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Valvoline Max-Life full synthetic 10w-30
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