I was going up toward Oxford, MS this weekend to catch the Arkansas-Ole Miss game. On the way I had a ({!}) light up next to the oil gauge. I thought wtf. The oil gauge pointer would move between medium and 3/4 every time the engine would go onto over drive or I reved the engine. The light went out 100 miles later. I have checked the oil 5x since times. That needle moves everytime the engine has any stress on it or stop and take off. I don't seem to remember this happening before. I could be crazy. Is this similar to what has happened to you? I looked in the owners manual and the description is vague. Think I should take it back to North Lake Toyota for a check?