Focus Fanatics - View Single Post - **synthetic or not?
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Old 06-13-2013, 10:46 AM   #2
bones33
Focus Enthusiast
 
Join Date: Oct 2012
Fan#: 105414
Location: Olympia, WA
What I Drive: '05 Silver ST

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Do the synth. Dino oil at 3K intervals means you have a very very clean engine and at only 61K means it is likely in great shape.

I'd do full synthetic and change at 6k+ intervals. Do an oil analysis and you would probably find you could go 10K intervals, maybe more before the oil approaches it's wear out point.
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