Originally Posted by Soccerluvr4
My car has 140k on it, I have no idea how old the plugs are. Should probably check them.
Make sure they are the right size plugs too
The previous owner of my car, changed the plugs at some point, but put plugs for a smaller engine in it by mistake
It wasn't a huge difference, they put plugs and for a 3.6 L
So most likely I have a little carbon buildup in my car, from unburnt fuel, because of a lower spark