Recommended Results

Viscosity of Automatic Transmission Fluid - ATF

ATF III Mineral Automatic Transmission Fluid

Description

Automatic transmission fluid (ATF) is a special lubricant used in automatic gearboxes, hydraulic-power-assisted steering systems and in the transfer cases of 4WD systems of cars and trucks. Some manual transmissions also use this fluid. Besides gear lubrication, the liquid is designed for optimal functioning of all transmission parts like the torque converter.

ATF is not an oil but a mixture of various chemical compounds containing a large number of additives. It must fulfill manyf specifications. Other than lube oils, ATFs are colored (red or green) to distinguish them from other liquids used in a vehicle. ATFs are specified mainly according to vehicle manufacturers' directives, common are DEXRON (General Motors) or MERCON (Ford).

Viscosity Table – Measurement data

ATF III - Mineral automatic transmission fluid

Temp. [°C] Dyn. Viscosity [mPa.s] Kin. Viscosity [mm²/s] Density [g/cm³]
0 217.29 247.39 0.8783
10 118.06 135.42 0.8718
20 70.04 80.93 0.8655
30 44.70 52.04 0.8591
40 30.31 35.55 0.8527
50 21.53 25.44 0.8462
60 15.93 18.97 0.8398
70 12.18 14.62 0.8333
80 9.57 11.58 0.8269
90 7.71 9.39 0.8205
100 6.32 7.77 0.8140

Automatic Transmission Fluid III - kinematic viscosity and density over temperature

Reference

Measured with SVM™.

Metainformation

Reference Measurement with SVM™
Kin. vis. yes
Dyn. vis. yes
Density yes
Multiple temperatures yes
Related ATF, automatic transmission fluid, viscosity, DEXRON