I got up Monday morning to go to work ,and my car is idling funny. it ran well the night before,but its running funny. im thinking since I put regular gas in $15 to get me to the week. but it was running fine and I didn't step on it (just 55-60 mph). thinking...maybe bad gas,moistger on the plugs, wires. I drove it 45 mins to work............not over heating(thought maybe I blew head gaskets)...no white smoke from tailpipes,no mixure of anti frezze on dip stick,oil cap and the anti frezze in rad still greeni.ve yet had time to pull it in the firehouse to check it over. no check engine light.plugs, wires were done over the summer. hoping it just water in the tank from bad gas or a loose wire. it snowed a lot over the weekend and maybe the snow plow pushed snow and slush near the car , so maybe I have a moistcher problem. any ideas would help.