By adding Bellhammer Seven, Bellhammer Light, and LS Bellhammer GOLD to the engine of an overrunning car, the performance of the engine will improve extremely. This will cause the oil temperature sensor to react and activate the electric control map for vehicles with CVT or AT drive operation. As a result of the operation of the electric control map, there is a possibility that the CVT and AT will slip, so please refrain from adding less than 5% or the amount of additive for vehicles with excessive driving.