Maryland Cherokee Club
07-20-2012, 09:17 AM
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Join Date: Feb 2012
Location: Sykesville, Md
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Year: 2000
Model: Cherokee
Engine: 4.0
only hurting your gas mileage and engine component life
I'm a big opponent to increasing the engine oil weight from manufacturer spec. My reasoning is they spent countless hours and dollars in engine development, so i'm confident the weight the specified is the best for the engine internals. By increasing the weight all you're doing is increasing it's resistance to flow, making the engine work harder and decreasing the lubrication of the internals.
I use 5w-30 part-syn year round, and have even considered going 0W-30 if I switched to full synthetic (never gonna happen...). I see no benefit from using anything else.
18mpg on 33" MTs and 261,000 miles speaks for itself I think...my truck runs really well.
I'm a big opponent to increasing the engine oil weight from manufacturer spec. My reasoning is they spent countless hours and dollars in engine development, so i'm confident the weight the specified is the best for the engine internals. By increasing the weight all you're doing is increasing it's resistance to flow, making the engine work harder and decreasing the lubrication of the internals.
I use 5w-30 part-syn year round, and have even considered going 0W-30 if I switched to full synthetic (never gonna happen...). I see no benefit from using anything else.
18mpg on 33" MTs and 261,000 miles speaks for itself I think...my truck runs really well.
Think I might go conventional 10-30 and see if there is a difference. I went a tad thicker due to RPMs when wheeling higher RPM you do want a little thicker oil so it doesnt just sling everywhere without lubricating anything.
You are going to s*** when you read this but in the pickup I run straight conventional Valvoline 60W lol
07-20-2012, 09:18 AM
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Year: 2000
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07-20-2012, 09:22 AM
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Join Date: Dec 2010
Location: Frederick, Maryland
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Year: 1996
Model: Cherokee
Engine: 4.0 I-6 High output
07-20-2012, 09:28 AM
☠ CF Sheriff ☠
07-20-2012, 10:02 AM
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Year: 2000
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Engine: 4.0
With the 3 speed auto and the 3.90 gear it spins pretty high while cruising and the race weight oils are actually detergent free, also keeps the roller cam quiet instead of sounding like a squealing gerbil
07-20-2012, 10:02 AM
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Location: Berea, OH
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Year: 1998
Model: Cherokee
Engine: 4.0
07-20-2012, 10:22 AM
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"wen umak out to manssas wel go hit the bar don forget blls vs skins cumn up too"
Just seen this posted up on someones status. Nawmeen?
Just seen this posted up on someones status. Nawmeen?
07-20-2012, 10:26 AM
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07-20-2012, 10:30 AM
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Join Date: Aug 2011
Location: New Market
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Year: 1998
Model: Cherokee
Engine: 4.0L I6
Originally Posted by jimmy21669
T minus 10 hours and counting until Beer thirty.
mmmm.....beer.....
mmmm.....beer.....
07-20-2012, 10:35 AM
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Year: 1998
Model: Cherokee
Engine: 4.0