Time for a oil change so got some 5w-20 full synthetic and oil filter and went under to see what it was all about since this would be the first time we did a oil change to our 2008 patriot 2.0L cvt. I heard the drain plug was like 13mm but when we were trying to turn, it was jumping so thought lets try 12mm and its a bit too small. We also tried standard sizes but no luck! Is there something we are missing? Hope you dont need some special wrench just to do a oil change. Sometimes it makes me wonder what they do for you to get it done at the dealership......