Beckoning
Member
I have 3 questions because the manuals I have don't specify:
1) Correct gear oil for bottom units on my 1988 100hp Merc (less than 1 pint) and 2010 9.9hp Merc (about 1 pint), and
2) Correct oil for 9.9 Merc 4-stroke. It is used 100 hrs/summer in Lake Michigan (45-70 degrees temp) at trolling speeds (less than 4mph), and
3) I cannot find an oil filter on the 9.9. Is there an oil filter or screen hidden somewhere that I should clean or change?
1) Correct gear oil for bottom units on my 1988 100hp Merc (less than 1 pint) and 2010 9.9hp Merc (about 1 pint), and
2) Correct oil for 9.9 Merc 4-stroke. It is used 100 hrs/summer in Lake Michigan (45-70 degrees temp) at trolling speeds (less than 4mph), and
3) I cannot find an oil filter on the 9.9. Is there an oil filter or screen hidden somewhere that I should clean or change?