![]() ![]() Vehicles that were originally delivered with the old ATF formulation generally can use the new ATF instead. In the last several years, all of the major automakers have introduced fully synthetic ATFs, superseding conventionally based ATFs previously used. The most common names are Dexron, Mercon, and ATF+4, which are brand names of General Motors, Ford, and Chrysler fluids, respectively.īut, auto manufacturers usually cease licensing old ATF formulations after they’ve introduced a new ATF. The license fee also allows the oil company to use the automaker’s proprietary ATF brand name. They manufacture ATF according to a recipe of base oils and additives set by the car company and licensed to the oil company. Moreover, if your vehicle is still under warranty, using a fluid thatis not approved by the vehicle manufacturer will void the transmission warranty.Īutomobile companies develop automatic transmission fluids, or at least set specifications for them. ATFs are engineered to work with the design of specific automatic transmissions. So, a little background information may be helpful.Īutomatic transmission fluids have specific viscosities, friction coefficients, and additives. Because using the wrong one can damage the transmission, getting the right one matters. It isn’t always clear whether a specific ATF is proper for your vehicle. Selecting the proper automatic transmission fluid (ATF) can be a complicated proposition.
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