Oil Weight
#3
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Join Date: Aug 2011
Location: Nor-Cal Coast
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Year: 90,84
Model: Cherokee
Engine: 4.0,2.5
I've run Castrol in everything for 12 years with zero failures. Quaker State is also made from a higher grade crude...I hear good things about synthetics, not for me as I maintain....more engines than I can count! 10 or 12.
#4
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Location: Arcata California
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Year: 1996
Model: Cherokee
Engine: 4.0
10 30 is what your manual will say and what ever you use stick with it. your best off sticking with the same brand of oil every time you change your oil.
#5
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Year: 1999
Model: Cherokee
Engine: 4.0
Depends on the primary ambient temperature. Your owners manual will confirm this.
*10-30 if the outside temperature is primarily ABOVE 60 degrees farenheit
*5-30 if the outside temperature is primarily BELOW 60 degrees farenheit
Personally, I run 10-30 down to about 45 degrees or so.....
*10-30 if the outside temperature is primarily ABOVE 60 degrees farenheit
*5-30 if the outside temperature is primarily BELOW 60 degrees farenheit
Personally, I run 10-30 down to about 45 degrees or so.....
#7
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Year: 1999
Model: Cherokee
Engine: 4.0
I've used 10w30 in warm weather and 5w30 in cold weather for years, but I'm planning to switch to 5w30 year round. I don't see any advantage to the 10w30 as I read more about lubricants.
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