The oil suitable for automatic transmissions, power steering of Volvo
Trucks fitted with Volvo automatic transmissions require ATF quality Dexron II D to facilitate smooth gear changing.

Very great demands are made on oil for automatic transmission and power steering installations. The oil must have a very low sensitivity to temperature, that is, temperature variations must have as little influence as possible on the viscosity of the oil. Moreover, the oil must have good cleansing characteristics, since deposits, for example on valves, have an immediate detrimental effect on the functioning of the unit. Foaming must not occur since the function of the unit demands a constant flow of oil. Anti-oxidation and anti-corrosive qualities must also be the very best.

ATF means Automatic Transmission Fluid.