Was leaving my house when the oil gauge started bouncing like crazy. A month or so ago i had a radiator issue that i had fixed and so forth. but the gauge started bouncing for the ouil and this the first time that happen. As i got closer to work i got to a stop light and grey smoke started coming out of my hood, i pulled in to work a few blocks away. When i lift the hood their was little smoke and oil every where? Any clue what could ahve happen will this be cheap to fix?