Gear Case/Box Oil for a Evinrude 18hp 1970

[ChrisChase]

Hi
Does anyone know the correct gear case oil to use on a 18hp evinrude 1970 18002C as im currently rebuilding the gearcase!
Thanks

 

[seahorse5]

Re: Gear Case/Box Oil for a Evinrude 18hp 1970

See your local dealer for either Ultra-Hpf or HPF-XR lower unit oil. The XR is a bit more expensive, but will lubricate even if some water leaks into the gearcase. That is very common on older motors.