Re: what kind of gear oil?
Is your V-4 electric shift or Mechanical?<br /><br />If mechanical, High-Viscosity SAE 90W GL-5 rated marine gearcase oil, despite any recomendation of the lighter "OMC Type C" in your unit. <br /><br />If Electric, it must be "OMC (or Bombardier) Premium Blend gearcase lube" oil, and no others. This is what used to be called "Type C".<br /><br />I hope this helps!<br /><br />PS - apparently the big difference between 'outboard' gearcase oil and plain SAE 90 GL5 is that there are emulsefiers in the outboard stuff to keep any water that gets in there mixed with the oil. Plus rust inhibitors of course.
