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Unread 06-27-2013, 06:14 AM   #1
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Join Date: Jun 2013
Posts: 4
Synthetic Oil

Hi, I am thinking about switching over to synthetic oil in my 2000 Jeep Cherokee Sport 4.0 6 cylinder. I would like to know if there is a process of switching over from conventional oil to synthetic and any first hand accounts on the comparison of synthetic and conventional. Also any recommended brands too. Thanks in advanced,

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Unread 06-27-2013, 08:26 AM   #2
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1995 ZJ 
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Location: Norman, OK
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There is nothing special about what you need to do. Though I have never confirmed this, some people have noticed slightly more oil consumption from synthetic oil. Synthetic oil lasts longer so if you are not increasing the change interval you're really not getting the full benefit to using synthetic. I don't have a brand to recommend but make sure you are buying is full synthetic or a blend, it will say on the label.
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Unread 06-27-2013, 10:21 AM   #3
2004 TJ Wrangler 
Join Date: May 2008
Location: Lake in the Hills, illinois
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Ive done this on all my junk. I like the synthetic because I run longer oil change intervals. 6K vs. 3K. All are 165K or higher mileage. They do not leak or burn any oil. Ive been using 5-40w Rotella T-6 on sale at 20 per gallon but would try others if on sale. Ive done this to my kids cars with the same results. I do lube them at 3k for a little peace of mind.

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