Why am I having oil in the intake tube and my car acts as if in need for gas

Oil getting inside your intake tube is often caused by a lack of proper crankcase ventilation, such as with a Positive Crankcase Ventilation (PCV) valve. An issue with this and possibly engine vacuum could be causing both issues. However, this is a very basic guess, and there are likely related extenuating circumstances in play...a proper diagnosis by a skilled technician with good diagnostic equipment and manuals is in order.