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05 wrangler 4.0 oil recommendations #4475104
07/30/17 09:45 PM
07/30/17 09:45 PM
Joined: Mar 2015
Posts: 339
New York
02s4audi Offline OP
02s4audi  Offline OP
Joined: Mar 2015
Posts: 339
New York
I'm purchasing a 2005 jeep wrangler tomorrow. It has the 4.0 inline 6 and 132k miles on it. Im wondering what oil you guys recommend for this engine? I will run a fram ultra filter with whatever oil I run. I live in upstate NY and would like an oil i can stick with all year round. Thanks

Last edited by 02s4audi; 07/30/17 09:51 PM.
Re: 05 wrangler 4.0 oil recommendations [Re: 02s4audi] #4475106
07/30/17 09:47 PM
07/30/17 09:47 PM
Joined: Mar 2015
Posts: 339
New York
02s4audi Offline OP
02s4audi  Offline OP
Joined: Mar 2015
Posts: 339
New York
I was thinking maybe rotella t6 as I thought I read somewhere that people loved it in the jeep 4.0 I was also wondering about m1 0w40

Last edited by 02s4audi; 07/30/17 09:51 PM.
Re: 05 wrangler 4.0 oil recommendations [Re: 02s4audi] #4475108
07/30/17 09:51 PM
07/30/17 09:51 PM
Joined: Oct 2005
Posts: 7,094
Colorado
Kuato Offline
Kuato  Offline
Joined: Oct 2005
Posts: 7,094
Colorado
The 4.0 does like 5w40 Rotella, and also 10w30s. I had the 4.0 in two different Grand Cherokees and used 5w30 - also with good results. Avoid M1 oil in this engine as it produces more than twice the iron as other oils.

I miss my 4.0; oil changes are extremely straightforward.


Thick vs Thin test: 15k / 43k miles complete
Re: 05 wrangler 4.0 oil recommendations [Re: 02s4audi] #4475122
07/30/17 10:08 PM
07/30/17 10:08 PM
Joined: Jun 2003
Posts: 17,843
Deplorable in apple valley, ca
Chris142 Online content
Chris142  Online Content
Joined: Jun 2003
Posts: 17,843
Deplorable in apple valley, ca
No oil will stop the 05 and 06 from eating the oil pump driveshaft and the cam gear. I would stay away from those 2 years.


02 Wrangler carlube 5w30
87 F250 traveler 15w40
07 fjcruiser Chevron 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor 15w40
Re: 05 wrangler 4.0 oil recommendations [Re: 02s4audi] #4475123
07/30/17 10:08 PM
07/30/17 10:08 PM
Joined: Mar 2015
Posts: 339
New York
02s4audi Offline OP
02s4audi  Offline OP
Joined: Mar 2015
Posts: 339
New York
I'm leaning towards t6. Seems like people use it in everything lol.

Re: 05 wrangler 4.0 oil recommendations [Re: 02s4audi] #4475149
07/30/17 11:26 PM
07/30/17 11:26 PM
Joined: Apr 2017
Posts: 515
Fort Worth TX
TheKracken Offline
TheKracken  Offline
Joined: Apr 2017
Posts: 515
Fort Worth TX
I didnt know they had the inline 6 all the way to the 05 year...might just have to consider one of those, they are legendary from what I hear,


2011 Prius 96k miles RLI 5w20
97 Toy T100 4x4: amsoil 0w20 242k Miles
04 Toy Sienna awd: Pennzoil 0w20 281k Miles
Re: 05 wrangler 4.0 oil recommendations [Re: 02s4audi] #4475182
07/31/17 02:45 AM
07/31/17 02:45 AM
Joined: Jun 2017
Posts: 220
NY
DdDd Offline
DdDd  Offline
Joined: Jun 2017
Posts: 220
NY
I did 150k miles on that motor in the TJ using nothing fancier than M1 5w-30 changed every year or 10k miles, whichever came first.

Filter I used was one size up PH8 in fram I believe. The one that fits the old ford 5.0. It held more oil than the stocker and had more filter.

When the engine finally croaked it was a head gasket leak that did it in. Sudden coolant loss out the cylinders lol. When the mechanic was looking at it he was astounded how new the internals and hatching looked. No ridges or sludge.

Only goes to show, worry about oil until you're blue in the face. Any number of things can get you. Yes they had a defective head casting in those early 2000 models. Id check the stamping if I were you. Google the problems...

Re: 05 wrangler 4.0 oil recommendations [Re: DdDd] #4475214
07/31/17 05:07 AM
07/31/17 05:07 AM
Joined: Oct 2005
Posts: 7,094
Colorado
Kuato Offline
Kuato  Offline
Joined: Oct 2005
Posts: 7,094
Colorado
Originally Posted By: DdDd
I did 150k miles on that motor in the TJ using nothing fancier than M1 5w-30 changed every year or 10k miles, whichever came first.

Filter I used was one size up PH8 in fram I believe. The one that fits the old ford 5.0. It held more oil than the stocker and had more filter.

When the engine finally croaked it was a head gasket leak that did it in. Sudden coolant loss out the cylinders lol. When the mechanic was looking at it he was astounded how new the internals and hatching looked. No ridges or sludge.

Only goes to show, worry about oil until you're blue in the face. Any number of things can get you. Yes they had a defective head casting in those early 2000 models. Id check the stamping if I were you. Google the problems...


0331 head issue was solved by 2001 so not an issue for OP in his '05.

While M1 is a very good oil, I'll say again that it's well documented that M1 produces more than twice the iron wear in this engine.


Thick vs Thin test: 15k / 43k miles complete
Re: 05 wrangler 4.0 oil recommendations [Re: 02s4audi] #4475223
07/31/17 05:29 AM
07/31/17 05:29 AM
Joined: Sep 2010
Posts: 2,100
GA.
ChrisD46 Offline
ChrisD46  Offline
Joined: Sep 2010
Posts: 2,100
GA.
*Regarding M1 high iron levels : Wasn't that just one year due to a hurricane causing the need for a temp formulation change ?


2017 Hyundai Sonata 2.4L GDI 4 cylinder
2010 Hyundai Elantra 2.0L 4 cylinder
2007 Kia Sedona 3.8L 6 cylinder
Re: 05 wrangler 4.0 oil recommendations [Re: TheKracken] #4475226
07/31/17 05:38 AM
07/31/17 05:38 AM
Joined: Mar 2015
Posts: 339
New York
02s4audi Offline OP
02s4audi  Offline OP
Joined: Mar 2015
Posts: 339
New York
They used the inline 6 up until 2006. In 2007 new body style (jk) with a 3.8 v6

Re: 05 wrangler 4.0 oil recommendations [Re: 02s4audi] #4475311
07/31/17 07:31 AM
07/31/17 07:31 AM
Joined: Apr 2010
Posts: 4,565
Storrs, Connecticut
jeepman3071 Offline
jeepman3071  Offline
Joined: Apr 2010
Posts: 4,565
Storrs, Connecticut
Pennzoil conventional 5w30 or 10w30. Quietest oil I have run in my Jeep, as well as a few other members on here. I also returned a UOA with single digit iron wear numbers, it is floating around this forum somewhere in the UOA section.

Personally, I felt the Rotella T6 was a bit too thick, especially on start up in the winter.

Here is a link to the UOAs with Pennzoil:

Jeep 4.0 Pennzoil UOA

Last edited by jeepman3071; 07/31/17 07:33 AM.

2000 Jeep Cherokee 4.0L (181k) - Pennzoil 10w30, Napa Gold 1516, Magnefine trans filter
2009 BMW 328i (36k) - Castrol Edge Euro 0w40, MANN HU816X
Re: 05 wrangler 4.0 oil recommendations [Re: 02s4audi] #4475343
07/31/17 08:04 AM
07/31/17 08:04 AM
Joined: Mar 2012
Posts: 804
BerksCounty/Pa.
thorromig Offline
thorromig  Offline
Joined: Mar 2012
Posts: 804
BerksCounty/Pa.
For the price -- QSUD 5W30 & Fram Ultra all day. That motor will luv that combo!!! wink


00 Dodge Ram 5.2L 4x4 Edge 10W30 FU (91K)
08 Acura TL Type S 3.5L PUPP 5W20 FU (101K)
17 Jetta TSI SE 1.4L Turbo - Edge 0W40 FU (Hers) (4K)
Re: 05 wrangler 4.0 oil recommendations [Re: 02s4audi] #4475417
07/31/17 09:13 AM
07/31/17 09:13 AM
Joined: Sep 2014
Posts: 2,180
US-WA
Dyusik Offline
Dyusik  Offline
Joined: Sep 2014
Posts: 2,180
US-WA
HDEO in a 10w30 or 5w40, seen people run SAE30 and SAE40 with same luck as anything else. Valvoline comes to mind as well. I have seen people have better #'s with 10w vs 5w on uoas if that means anything. Hard to give, or take power from that 242, and in reality "anything" is the correct suggestion.


95 Cherokee 190K DELO 10W30, XG8
07 IS250 103K Napa 10w30, FULL
04 YZF-R1 19K DELO 15w40, XG7317
99 HD XL1200S 21K VR1 20w50, NG1515
14 RX450h 35k PP MIX, NG7047
Re: 05 wrangler 4.0 oil recommendations [Re: 02s4audi] #4475419
07/31/17 09:14 AM
07/31/17 09:14 AM
Joined: Dec 2013
Posts: 2,099
socal
barkingspider Offline
barkingspider  Offline
Joined: Dec 2013
Posts: 2,099
socal
Any Xw30 brand you like best will do


06 Cadillac Escalade Ext
17 Cadillac ATS (wife)
05 Toyota Camry (daughter)
11 GMC Canyon off-road (daily)
Re: 05 wrangler 4.0 oil recommendations [Re: ChrisD46] #4475438
07/31/17 09:40 AM
07/31/17 09:40 AM
Joined: Oct 2005
Posts: 7,094
Colorado
Kuato Offline
Kuato  Offline
Joined: Oct 2005
Posts: 7,094
Colorado
Originally Posted By: ChrisD46
*Regarding M1 high iron levels : Wasn't that just one year due to a hurricane causing the need for a temp formulation change ?


Nope. Across several years. In several different 4.0s


Thick vs Thin test: 15k / 43k miles complete
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