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5K is fine with synthetics. It's ok to go further but oil is cheap compared to parts and I feel better. That said, My Cobra has never been past 3k. Terminator engines are very expensive and like i said, I feel better.:D
 

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5-7 k, depends on driving conditions, oil can degrade faster under stop and go conditions on heavy traffic.
Always do a visual inspection first, place a few drops on a clean sheet of paper, let it dry, if there are dark or metal deposits it is time to change.
 

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Welcome to the site.
 
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