Yeah it'll hold. Trust me
I haven't had issues. Car has been amazing for the last 6 months... That's why after 420whl/650 I'm leaving it alone, so happy with how it turned out.
It all depends on the operator and maintenance. Besides that it's a diesel, she likes to be free...
I'd say 950cc injection with egts never exceeding 950 degrees is a good sign. Also take into consideration with more power (freely flowing) you "get on it" less as far as RPM. I never full rip unless there's a loud creature beside me....