i didn't realize this but when I bought my car from the idiots over at car max they put 10w-40 in my car. I've since put 4,000 miles on my car. Do you guys think I did any damage to my car??? I'm going to get my oil changed today. I'm so pissed how can the people over at car max ignore the damn sticker that says 0w-40 is recommended. Freaking dumbas*es!!! Let me know your opinions cause if you think I did damage I need to go throw a fit at carmax.