Re: Proper oil for ZF?
from the ZF manual
before putting a gearbox into service, the oil container should be filled with oil. Only mild EP gearbox oils of viscosity class SAE80 should be used.
Mild gear oil types are those EP oil grades which in the presence of condensation do not cause corrosion on steel and non-ferrous metal parts and hardening of gaskets and seals. The oils must meet our Lubrication Requirements for ZF Transmission Nr. 13-118.
Under these conditions, EP gear oils SAE 80 corresponding to specification MIL-L2105 (A) can be used. In case of doubt, check with the oil supplier or ask our after sales service for the ZF- Lubrication List for ZF Synchro gearboxes.
First filling capacity 3.5 litres.
Oil change times
First change. 4000 to 5000 Km
Further changes. 16000 to 20000 Km