The car can leak a variety of "oil" leaks.  Any oil leaks from the front of the car is most likely engine oil or power steering fluid, if your FC3S has powering steering.  Engine oil will smell like exhaust.  Power steering fluid will tend to be red in color and not smell like exhaust.  Keep in mind the power steering fluid runs though a cooling loop to the front bumper, so inspect the lines for leaks.
FC3S Pro:  Problems, Symptions - Leaks, Engine Oil

Transmission fluid will tend to leak under the center of the vehicle.  Transmission fluid will tend to leak either from the front bell housing, rear extension tail housing, or through the fill / drain plugs.

Oily leaks in the rear of the vehicle is most likely differential fluid.

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