Is transmission fluid a lubricant?
Is transmission fluid a lubricant? In an automatic transmission, it not only lubricates the moving parts, but also provides hydraulic pressure and friction to make the internal parts work. Transmission fluid in both manual and automatic transmissions also helps to keep the transmission cool. Do automatic transmissions use heavyweight gear oil for lubrication? A variety of fluids are used for different transmissions. Automatic transmissions use something called — shockingly — automatic transmission fluid. Manual transmissions use a variety of oils: regular motor oil, heavyweight hypoid gear oil or even automatic transmission fluid in some cases. What can I use for...