what oil do you recommend???
01-12-2011, 04:42 PM
#16
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Year: 1995
Model: Cherokee
Engine: 4.0
i use the royal purple 10w30 full synthetic and i love it
ever since i used it i can feel the motor runnin smoother and even felt a little bit of a power gain
only fall back to runnin full synthetic oil is u AWLAYS have to for the rest of ur jeeps life u CANNOT switch back to conventional oil
ever since i used it i can feel the motor runnin smoother and even felt a little bit of a power gain
only fall back to runnin full synthetic oil is u AWLAYS have to for the rest of ur jeeps life u CANNOT switch back to conventional oil
01-12-2011, 05:50 PM
#17
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Location: LI, NY
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Year: 2000
Model: Cherokee
I usually switch between 10w40 in the summer and 10w30 in the winter here in the north east. I think it really depends on the weather you typically drive in. If it gets pretty hot out and you run the a/c hard like i do, i personally like 40 weight as the oil pressure does not drop so much at idle and sitting in traffic. In the winter i go back to the 30 weight as it makes starting a little easier.
As for brand and type, i just use regular dino oil. Usually between Penzoil or Exxon.. whichever my local auto place has.
As for brand and type, i just use regular dino oil. Usually between Penzoil or Exxon.. whichever my local auto place has.
01-12-2011, 05:54 PM
#18
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you might want to consider using an oversize filter eg. NAPA 1085 is the normal filter but a NAPA 1515(oversize) will also fit. you either get more surface area to filter the oil or you can add more than 6 qts. if you desire.
01-12-2011, 06:18 PM
#20
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Year: 1990
Model: Cherokee
I run 5qts of Lucas 10w-30(High Zinc) and a bottle of their Oil Stabilizer, seems to work Great, when i first bought this XJ, it had some build up when i took off the Valve cover, this seemed to clean it up real nice.http://www.lucasoiloffroad.com/lucas...yn%2010W30.pdf
Last edited by 90XJNSD; 01-12-2011 at 06:30 PM.
01-12-2011, 06:22 PM
#22
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Year: 1987
Model: Cherokee
Engine: 1987 4.0L (242 CID) I6 RENIX FI 242 173 hp (129 kW) @ 4600 rpm, 224 lb•ft (304 N-m) @ 4000RPM
I use royal purple or rotella.
Rotella has all. The. Good. Stuff our. Engine needs
Rotella has all. The. Good. Stuff our. Engine needs
01-12-2011, 06:23 PM
#23
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Year: 1994
Model: Cherokee
Engine: 4.0
I use Rotella T6 5W-40. You really need to run oils (specifically diesel oils) with a ZDDP package, or add it yourself. Flat tappet camshaft-equipped engines, like the 4.0, need zinc and phosphorus in their oils for improved cam life.
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