Actually synthetic oil, although it is great for everything else, unless changed as frequently as changing dino oil, might WORSEN timing chain wear rate. It is tiny particulate that wears the timing chain, or "stretches" it as it is called. The only reason that the synth might WORSEN wear rate is because you would tend not to change it as often.

Frequent oil changes are the best way to keep particulate at bay. These are particles too small to be captured by the oil filter. Read my sig.

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2001 SLK 320 six speed manual
2014 Porsche Cayenne six speed manual

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