If you're worried about carbon on the intake valves then I suggest doing the preventative maintenance of running a can of CRC IVD Intake Valve & Turbo Cleaner or a similar cleaner every other oil change or every oil change if you feel so inclined.
I think you are woried about a "what if" that may never be a real issue. Use a good name brand oil that meets your engine requirements, change oil at the manufacture requirement and enjoy your vehicle rather than worrying about things.
Yeah thanks for asking, when commuting to work, it's gonna be mostly freeway with some street traffic to get onto/from the freeway to my destination. Is there additives I should see about adding if I do start driving more in the street but I have Kirkland oil in there?