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Wrangler TJ Engine Oil #5392886 04/03/20 04:53 PM
Joined: Apr 2020
Posts: 1
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TJim Offline OP
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Joined: Apr 2020
Posts: 1
Hey Guys,

I have a Wrangler TJ 2004 2.4L and I would like to ask some questions about engine oil!

1) Should I prefer conventional or synthetic oil?
2) The manual refers that I have to choose a 5w30 engine oil that meets the MS-6395 standards. Should I choose an oil with the MS-6395, or any major brand 5W-30 synthetic oil is ok?

Re: Wrangler TJ Engine Oil [Re: TJim] #5392889 04/03/20 04:57 PM
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OilReport99 Offline
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Welcome to BITOG!

welcome

Yes, follow the manual recommendations.


2018 Ram 1500
Re: Wrangler TJ Engine Oil [Re: TJim] #5392913 04/03/20 05:26 PM
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Chris142 Offline
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I think every oil passes that spec. Do keep in mind that you have a very rare engine with little to no replacement parts available. Run a good oil,filters and watch the temp gauge like a hawk.

Also it is a valve bender. While the valves will not hit the pistons they can hit each other if the timing belt strips or breaks.


02 Wrangler Napa high milage 10w40
87 F250 Valvoline 15w40
07 fjcruiser Car lube plus 10w30
Z400 castrol T 10w40
Can am Maveric edge 5w40
57 case tractor Chevron sae30
Re: Wrangler TJ Engine Oil [Re: TJim] #5392919 04/03/20 05:33 PM
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incognito_2u Offline
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Material Standards-6395 is such a non stringent spec, and being that your out of “Warranty” you would be best served with any major producers 5W-30 oil. Synthetic will suit you fine.
With those 2.4 PowerTechs, make sure your diligent in replacing the Timing Belt......just saying!


2006 Jeep Commander 3.7 V6 -116k (M1EP5W30/XG3600)
2006 Toyota Corolla 1.8 VVTi -88k (M1EP5W30/XG3600)
1999 Toyota Corolla 1.8 -92k (PUP5W30/XG4386)
1998 Toyota Corolla 1.8 -68k (VME5W30/XG3600)
Re: Wrangler TJ Engine Oil [Re: Chris142] #5392980 04/03/20 07:08 PM
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Miller88 Offline
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Originally Posted by Chris142
I think every oil passes that spec. Do keep in mind that you have a very rare engine with little to no replacement parts available. Run a good oil,filters and watch the temp gauge like a hawk.

Also it is a valve bender. While the valves will not hit the pistons they can hit each other if the timing belt strips or breaks.



I almost bought one in great shape with a bad headgasket. But ended up walking because it's nearly impossible to find that engine as a replacement. But those 2.4s will blow the head gasket if you sneeze wrong.


18 Forester 2.5I 6M
00 Jeep XJ
01 F-350 4x4 5M
Re: Wrangler TJ Engine Oil [Re: TJim] #5393035 04/03/20 08:04 PM
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Chris142 Offline
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The jeep 2.4 is based on the pt loser engine. I think the head is the same. The block is jeep only. If you window the block finding a replacement wont be easy or cheap.


02 Wrangler Napa high milage 10w40
87 F250 Valvoline 15w40
07 fjcruiser Car lube plus 10w30
Z400 castrol T 10w40
Can am Maveric edge 5w40
57 case tractor Chevron sae30
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