The way I had it put to me one day... and I forget who said it... but his remark was that Rotella was a modest quality oil with a top notch marketing program and a top shelf price.
That still doesn't mean it's a bad oil...
I've never used it myself. I've never heard anything bad about it either... so I'd say if it works fine for you; use it.
Biggest thing in avoiding wear is to avoid hard cold starts and keep the oil and filter changed within the manufacturers recomendations... or when you notice oil degredation.
I have one I change at 100 hours use though it's recomended at 150 hours... but basically it starts slowly consuming oil around 70-80 hours use on hard work... oil is degrading abit... so I change it when it gets down to the add mark.. unless it's really low hours since the last change.