4.7 HO oil options! - JeepForum.com

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post #1 of 32 Old 04-07-2013, 03:38 PM Thread Starter
Roger005
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4.7 HO oil options!

I have an 04 4.7HO and I am wanting to switch to a diesel oil in it. What are you guys running in that motor? Do you have any suggestions? I know there is this whole 10W30 thing..

I am thinking maybe 10w40?

Thank you.

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post #2 of 32 Old 04-07-2013, 03:52 PM
funkduck
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The engineers say 10w30 so I run 10w30.



BULLETIN NUMBER: 04172008
TO: All Lubrication Guides Users
FROM: Specifications Team, Chek-Chart Data Acquisition
DATE: April 17, 2008

SUBJECT: Engine oil viscosity listed for 2001-08 Jeep Grand Cherokee and 2007-08 Jeep Commander

Please be advised that the engine oil viscosity as published in our Lubrication Guides is incorrectly listed in some occasions for the 2001-08 Jeep Grand Cherokee and 2007-08 Jeep Commander. The OEM recommended engine oil viscosity for the 2001-08 Jeep Grand Cherokee and 2007-08 Jeep Commander is listed below:

2007-08 3.0L Turbo Diesel All Temperatures - SAE 5W-30

2005-06 3.7L All Temperatures - SAE 5W-30

2007-08 3.7L All Temperatures - SAE 5W-20

2001-04 4.0L Above 0 degrees Fahrenheit - SAE 10W-30
Below 32 degrees Fahrenheit - SAE 5W-30

2001-04 4.7L Above 0 degrees Fahrenheit - SAE 10W-30
Below 100 degrees Fahrenheit - SAE 5W-30

2005-06 4.7L All Temperatures - SAE 5W-30

2007-08 4.7L All Temperatures - SAE 5W-20

2002-04 4.7L High Output Above 0 degrees Fahrenheit - SAE 10W-30
Below 32 degrees Fahrenheit - SAE 5W-30

2005-08 5.7L All Temperatures - SAE 5W-20

2006-08 6.1L All Temperatures - SAE 0W-40
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post #3 of 32 Old 04-07-2013, 08:12 PM
lazyWJ
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Rotella T6

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post #4 of 32 Old 04-07-2013, 10:09 PM
journey50
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Mobil 1 10w 30 ... I was using the 5w20 and it made a lot of lifter noise at startup... Put 10w in mine and the startup noise went away.
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post #5 of 32 Old 04-07-2013, 11:29 PM
86cj74.2L
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My owners manual for the 04 4.7 says 5w30 in all conditions.
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post #6 of 32 Old 04-07-2013, 11:29 PM
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Quote:
Originally Posted by lazyWJ
Rotella T6
Your running T6 in a 4.7?
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post #7 of 32 Old 04-07-2013, 11:35 PM
journey50
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For fuel mileage they changed it to 5w30 there a great thread about it on here.
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post #8 of 32 Old 04-08-2013, 08:13 AM
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Quote:
Originally Posted by 86cj74.2L View Post
Your running T6 in a 4.7?
Yes. I run T6 in my WRX and have run it in my bike as well.

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post #9 of 32 Old 04-08-2013, 09:30 AM
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The 4.7 doesn't need diesel oil in any variation, not the benefits that you can get for the 4.0, but never the less Rotella T5 10w30 would work very well in it IMO. A very thick diesel rated syn blend 10w30 and it's available at Wally's for $16 a gallon. Its nearly a 40 anyway its so thick.
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post #10 of 32 Old 04-08-2013, 10:44 AM
lazyWJ
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I like the taste of ZDDP. The T6 also has a good detergent pack and since there is some evidence that the 4.7 is often killed by sludge, this seems to be a good choice. It's rated for use in gasoline engines as well as diesel, is resistant to shearing and is full syn at a good price. YMMV.

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post #11 of 32 Old 04-08-2013, 12:42 PM
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Quote:
Originally Posted by lazyWJ

Yes. I run T6 in my WRX and have run it in my bike as well.
I mean in the 4.7 I run it I everything I own but the 4.7
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post #12 of 32 Old 04-08-2013, 06:35 PM
lazyWJ
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I meant to say that yes I run it in the 4.7 and also the bike and WRX, I didn't word it very clearly though. After sifting through UOA's and reading up on it a bit, it seemed like a good choice for the 4.7.

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post #13 of 32 Old 04-08-2013, 07:32 PM
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Quote:
Originally Posted by lazyWJ
I meant to say that yes I run it in the 4.7 and also the bike and WRX, I didn't word it very clearly though. After sifting through UOA's and reading up on it a bit, it seemed like a good choice for the 4.7.
It would be nice to only stock one oil. It's already in;

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post #14 of 32 Old 04-08-2013, 07:43 PM
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I used to have different grades of M1 around and then something different again for a the bike and the wife's car. Now, everyone gets the same come oil change time. Maybe I'm just getting lazy in my old age, but so far it's worked well for me.

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post #15 of 32 Old 05-10-2013, 06:31 PM
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5w30 Full synthetic thats it nothing else and you will get a smooth amd happy engine. The life of the engine is the oil and filter change, the same to the transmission.
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