what grade of oil do you use?
09-23-2008, 11:13 AM
#7
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Year: 1999
Model: Cherokee
Engine: 4.0
20w50 - the 4.0 is a real engine with real oil journals in it - doesn't run on water like new engines...
current jeep - 260K miles - last jeep 375K (wish i never sold it)
current jeep - 260K miles - last jeep 375K (wish i never sold it)
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09-23-2008, 11:39 AM
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Year: 1991
Model: Cherokee
Engine: 4.0 I6
Belto in your climate 10W30 will be fine year round. Add the ZDDP as suggested order it from HERE
09-23-2008, 12:45 PM
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Belto in your climate 10W30 will be fine year round. Add the ZDDP as suggested order it from HERE
09-23-2008, 01:04 PM
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Year: 2000
Model: Cherokee
Engine: I-6 HO
Since the majority of my driving will be in cold Winter weather, I opted for 5W-30, being told it will make cold-weather starts easier than the heavier weight stuff. I'll monitor how things run with this thinner oil through the Spring. May switch to heavier for next year's return to warmer temps.
09-23-2008, 01:13 PM
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Year: 1990
Model: Cherokee
Engine: 4.7 Stroker
Frankz..Have you possibly considered it to be a Crane issue??
Every cam I have read about lately has been Crane. My compcam in my stroker is working great with the 5w30 off the shelf. Quaker state is usually what I use but if not, its whatever is cheapest (above the store brand)
Store brand = water.
Every cam I have read about lately has been Crane. My compcam in my stroker is working great with the 5w30 off the shelf. Quaker state is usually what I use but if not, its whatever is cheapest (above the store brand)
Store brand = water.
09-23-2008, 05:48 PM
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Year: 90
Model: Cherokee
Engine: 4.0
Frankz..Have you possibly considered it to be a Crane issue??
Every cam I have read about lately has been Crane. My compcam in my stroker is working great with the 5w30 off the shelf. Quaker state is usually what I use but if not, its whatever is cheapest (above the store brand)
Store brand = water.
Every cam I have read about lately has been Crane. My compcam in my stroker is working great with the 5w30 off the shelf. Quaker state is usually what I use but if not, its whatever is cheapest (above the store brand)
Store brand = water.
Crane was specifically recommending high ZDDP levels for their cams. Besides being what was orginally recommended for flat-tappet cams, Crane may require it for warranty reasons.
BTW...20w-50 for me. Darn thing leaks everywhere.