Autocado provides a wide selection of car and truck transmission fluid additives to choose from. Our products are specially formulated for optimal lubrication, increasing fuel economy and extending the life of your vehicle’s transmission. Whether you're looking for synthetic-blend, low viscosity, high mileage or multi-vehicle fluids, trust Autocado to provide the highest quality car and truck transmission oil additive solutions. As an industry leader in automotive parts and accessories, our range of products come with superior performance features like oxidation stability, shear stability and unsurpassed wear protection. With guaranteed fast shipping nationwide plus unbeatable pricing on all car & truck transmissions oil additive brands such as Valvoline™ and Castrol®, Autocado is your best choice for