From the EMEI (Aust)
Centurion oils as per EMEI (Aust) VEH M360 issue 2, November 1973:
Main engine: OMD-110 (O-180) viscosity, cS at 210 deg F= 9.7 to 13.0
Gearbox: OC600 (O-208) viscosity, cS, at 210 degrees F = 29 to 32.
Final drives: OEP-220 (O184) viscosity cS at 210 deg F= 15.6 to 18.0
Oil specs from DEF (Aust) 206A.
From my limited experience, leaving any vehicle for years without turning a track/wheel will allow the upper part of the seals not in the oil to harden and when eventually run, to leak. This Cent was a gate guard for a long time, I seem to recall.
Nice job, Malcolm - congrats, it has come a long way since I saw it.
Mike
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