Type C for Lower gear unit

wilcahol

Cadet
Joined
Oct 30, 2006
Messages
9
I have been told that I can subsitute Automatic Transmission Fluid for Type C oil in my 1969 Johnson 55 HP engine with electronic shifting. Is this correct?
Thanks, Carl
 

tashasdaddy

Honorary Moderator Emeritus
Joined
Nov 11, 2005
Messages
51,019
Re: Type C for Lower gear unit

I wouldn't. those things are trouble some enough, without changing to different lube.
 

F_R

Supreme Mariner
Joined
Jul 7, 2006
Messages
28,226
Re: Type C for Lower gear unit

I have heard that advice come from an OMC engineer, for emergency use only. With the Type C, now "Premium Blend" readilly available there's no emergency so don't do it.
 
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