Hey guy's have problem with my car. It has an oil on the right side of the motor, It's 95 thunderbird with a 4.6, with around 160,000 on the motor. the only thing I can see is some oil on the corner of the head when I'm under the car looking up. It kind of a big leak, due to when I'm at a light it look's like the car is on fire. Could it be the head gasket leaking or the valve cover??? need some help with this.