The main difference between a CVT (Continuous Variable Transmission) and an AT (Automatic Transmission) is the use of a belt to shift instead of actual gears. By using a belt and pulleys with variable groove widths to transmit power, a CVT is able to deliver a smooth shock-less driving experience. CVT ensures fuel-efficient driving by maintaining the optimal gear ratio. AISIN has developed a premium fluid especially suitable for continuously variable transmissions in order to reduce fuel consumption, improve performance and increase the longevity of the transmission system. Our premium synthetic multipurpose CVT fluid is suited to most CVTs with push-belt or chain, as used by leading Asian and European car brands.