Reviews of OEM Subaru timing chain

My 18xt used 0 weight oil, then the timing chain started getting noisy, the dealer changed to 530 and no more noise. That was about 60k miles ago. Still going no issues so far

Gasoline direct injection turbos are subject to problems with soot and fuel dilution. This combination is especially problematic for timing chains. No matter how good the oil, you can't beat a reasonable oil change interval for ensuring your oil doesn't have soot in it.