Separate names with a comma.
Discussion in 'Sport Boats' started by Scott215, Sep 21, 2022.
Is there a cliff notes version.
Just scroll down to where the list starts and right before the list it will give you the rating of where protection and then find your oil you don't have to read at all but he tests this independently he's paid by nobody he's a drag racer and an engineer
Mercruiser sterndrives use 25w40. Its been that way for eons.
I have 4 Mercury 4-stroke outboards, from 3.5 HP to 150. All 4 call for Mercury or Quicksilver 10w30.