I took my 2010 SS to the dealership to get a oil change

before I set out on the highway for a 450 mile road trip back to my college. I noticed that it was a Valvoline sticker in the corner of my front windshield (I never look right after because I'm so used to it being Mobil1), I then grabbed my paperwork and it says they put valvoline maxlife oil in my car. I called the service manager and he insist that maxlife is ok to be used in the V8 models. Is he telling the truth or just saying anything to get me out of his ear? (sorry for long story)