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#2994399 - 05/06/13 08:18 AM 2001 Jeep Wrangler 4.0L
Twa717 Offline


Registered: 05/05/13
Posts: 11
Loc: Florida
I'm a new member here and would like to know what is the best oil to run in my Jeep Wrangler. It's a 2001 4.0 L has 119,000 miles and I use it for my daily driver. I live in Florida and don't drive the car real hard. I've never used a synthetic oil in it and don't off road. I been using 10w-30 with a Mopar factory oil filter, I believe that's what the owners manual recommends.

Also just curious, who makes the Mopar oil now (2013) ?

Thanks.

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#2994414 - 05/06/13 08:43 AM Re: 2001 Jeep Wrangler 4.0L [Re: Twa717]
Miller88 Offline


Registered: 04/09/08
Posts: 7015
Loc: Onondaga County
Rotella T6 5w-40 is an EXCELLENT oil for the 4.0. Has higher zinc, very good add pack and UOAs return good results; the 4.0 tends to like the 40 grade oils.

It's synthetic, but I switched my 2000 4.0 to synthetic in 2010 and it didn't fall apart like everyone says.

I think the filter mounts different on a Wrangler, but if you have the filter mounting parallel to the block, go with a Ford FL-1A filter.


Edited by Miller88 (05/06/13 08:43 AM)
_________________________
'11 Focus PYB 45K
'00 Cherokee PYB 125K

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#2994416 - 05/06/13 08:44 AM Re: 2001 Jeep Wrangler 4.0L [Re: Twa717]
jeepman3071 Online   content


Registered: 04/15/10
Posts: 1801
Loc: Storrs, Connecticut
That engine will be happy with anything from a 5w30 to a 10w40. Many on here recommend the Rotella 5w40 synthetic or Rotella 10w30 semi-synthetic for the 4.0L. The 4.0L is a somewhat noisy engine that is more closely related to a tractor engine than the modern gasoline engines in cars of today. Both me and another member on this site have found that Pennzoil Yellow Bottle conventional has made a significant difference in quieting down our engines. I would use the Pennzoil Yellow Bottle 10w30 or 10w40 considering your climate.

The Mopar filters are a good filter made by Purolator to Chrysler specs.
_________________________
2000 Jeep Cherokee Sport 4.0L (148k) - 5 qts PYB 5w30 + 1 qt PP 5w30, Napa Silver 31085, Magnefine trans filter

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#2994419 - 05/06/13 08:50 AM Re: 2001 Jeep Wrangler 4.0L [Re: jeepman3071]
Twa717 Offline


Registered: 05/05/13
Posts: 11
Loc: Florida
Thanks guys

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#2994422 - 05/06/13 08:58 AM Re: 2001 Jeep Wrangler 4.0L [Re: Twa717]
Zaedock Offline


Registered: 09/10/05
Posts: 3843
Loc: Massachusetts
You can do what you're doing and be fine. The Rotella, as mentioned, would be a fine choice.
_________________________
2012 F150 Ex-cab 5.0L/2004 Malibu Maxx LT
1992 YJ "The Heep"/1994 Olds Cutlass Ciera 3.1/auto
1975 Ford Bronco/1959 Willys CJ5/20XX Custom rock crawler

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#2994424 - 05/06/13 09:00 AM Re: 2001 Jeep Wrangler 4.0L [Re: Twa717]
Bandito440 Offline


Registered: 02/13/12
Posts: 1719
Loc: Northern NY
I second the T6. It's $21/gal at Wal-Mart and there's a $5 rebate for two gallons from Shell right now.
_________________________
'13 Forester 2.5X 5MT - NAPA 0w-20 & Wix 57830
'97 R1100GS - RL 20w-50, KN-163, Shockproof Heavy

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#2994430 - 05/06/13 09:04 AM Re: 2001 Jeep Wrangler 4.0L [Re: Miller88]
Twa717 Offline


Registered: 05/05/13
Posts: 11
Loc: Florida
On the Rotella shouldn't I use a 10W-30 like the manual says and especially in Florida?

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#2994432 - 05/06/13 09:07 AM Re: 2001 Jeep Wrangler 4.0L [Re: Twa717]
MrRPM Offline


Registered: 08/25/11
Posts: 437
Loc: Michigan
Quaker State DEFY
I'm on my 3rd fill and has seemed to stopped my RMS leak (which to begin with was really only a small weep)
_________________________
2001 Jeep Wrangler 4.0L, 5qts Quaker State DEFY 10w-30/1qt kendall GT-1 20w-50, FRAM XG8A (ultra)


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#2994436 - 05/06/13 09:13 AM Re: 2001 Jeep Wrangler 4.0L [Re: Twa717]
Bandito440 Offline


Registered: 02/13/12
Posts: 1719
Loc: Northern NY
Originally Posted By: Twa717
On the Rotella shouldn't I use a 10W-30 like the manual says and especially in Florida?

You'll be fine with T6. Those engines love the stuff. 5w-40 is fine. If you search around, you'll find a bunch of guys using it in their 4.0 Jeeps with great success.
_________________________
'13 Forester 2.5X 5MT - NAPA 0w-20 & Wix 57830
'97 R1100GS - RL 20w-50, KN-163, Shockproof Heavy

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#2994456 - 05/06/13 09:31 AM Re: 2001 Jeep Wrangler 4.0L [Re: Bandito440]
Twa717 Offline


Registered: 05/05/13
Posts: 11
Loc: Florida
would a gallon work I need 6 quarts?

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#2994457 - 05/06/13 09:34 AM Re: 2001 Jeep Wrangler 4.0L [Re: Twa717]
Twa717 Offline


Registered: 05/05/13
Posts: 11
Loc: Florida
I guess 4 quarts equals 1 gallon

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#2994459 - 05/06/13 09:44 AM Re: 2001 Jeep Wrangler 4.0L [Re: Twa717]
cat843 Offline


Registered: 04/09/13
Posts: 199
Loc: CT
The 4.0 engine takes 6 QTs. At least my 2001 does. But more oil is better.

AAP has Rotella T6 for $13.49/gallon (less than Walmart), its a sale but not sure for how long. I bought the last 5 gallons at my local store.

I use PP or PU 10W30 in mine.

The engine is bullet proof except for the casting #331 heads that crack, and the piston skirts that crack.

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#2994463 - 05/06/13 09:47 AM Re: 2001 Jeep Wrangler 4.0L [Re: cat843]
Twa717 Offline


Registered: 05/05/13
Posts: 11
Loc: Florida
I didn't think they made T6 in a 10W-30. PU or PP ?

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#2994466 - 05/06/13 09:52 AM Re: 2001 Jeep Wrangler 4.0L [Re: Twa717]
Twa717 Offline


Registered: 05/05/13
Posts: 11
Loc: Florida
ok you use Pennzoil products I'm catching on.

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#2994471 - 05/06/13 09:55 AM Re: 2001 Jeep Wrangler 4.0L [Re: Twa717]
Eddie Offline


Registered: 12/07/03
Posts: 6804
Loc: Florida, Cape Coral
The oil and filter you are using a good combination for your engine and the type of driving you mentioned. I see no reason to change. My 95 GGC was sold running 10w30 std Pennzoil and sold at ~ 180,000 miles running well without any major issues. The only major service, if you call, changing a rear oil seal major was the only thing done to the engine other that normal maintenance. Ed
_________________________
CX5 Touring 2.5L :-)

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