The viscosity of automatic transmission oil varies depending on the type of ATF (Automatic Transmission Fluid) used in a particular transmission.
Commonly used viscosity grades:
* ATF+3: Dexron III, Mercon
* ATF+4: Dexron VI, Mercon V
* ATF DW-1: for Ford PowerShift
*NS-2, NS-3, NS-4: for Toyota/Lexus
* SP-III, SP-IV: for Honda/Acura
* CVTF: Continuously Variable Transmission Fluid, for CVTs
SAE classification:
The viscosity of automatic transmission oil can also be indicated according to the SAE (Society of Automotive Engineers) classification. The most common viscosity grades for ATF:
*SAE 75W: Liquid at low temperatures
*SAE 80W: Thicker than 75W
*SAE 90: Even thicker, designed for higher operating temperatures
Recommendations:
Always use automatic transmission oil recommended by your vehicle manufacturer. Check your owner’s manual or contact your dealer for accurate information.