If your car needs gas with octane over 87, then Gas Pump Piggy Bank will help you save money. All you have to do is enter the price for each grade of octane at the pump, and Gas Pump Piggy will calculate the optimum blend of octanes to match your car’s needs and keep money in your pocket. Why spend $50.00 to fill your tank, when Gas Pump Piggy will show you how to spend $45.00?