Mercury 8 User Manual page 51

1. Turn the engine off. Have the outboard in a level operating
position. Remove the top cowl.
2. Remove dipstick. Wipe dipstick with a clean rag or towel and
push it back in all the way.
3. Pull the dipstick out again and observe the oil level. If oil level
is low, remove oil filler cap and fill to (but not over) the full mark
with the recommended oil.
IMPORTANT: Inspect oil for signs of contamination. Oil
contaminated with water will have a milky color to it; oil
contaminated with fuel will have a strong fuel smell. If
contaminated oil is noticed, have the engine checked by your
dealer.
4. Reinstall the oil filler cap and tighten securely.
a - Dipstick
FUEL AND OIL
a
43
b
4914
b - Oil filler cap