Mercury 40 jet fourstroke User Manual page 67

1. Turn the engine off. Have the outboard in a level operating
position. Remove the top cowl.
2. Flip the handle up and pull out the dipstick. Wipe it with a
clean rag or towel and push it back in all the way.
3. Pull the dipstick back out again and observe the oil level. If
the oil level is low, remove the oil filler cap and fill to (but not
over) the upper oil level 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. Push the dipstick back in all the way, then flip the handle
down to lock the dipstick in place. Reinstall the oil filler cap
and hand tighten securely.
a
b
a - Full mark
b - Add mark
c - Dipstick
d - Oil filler cap
eng
FUEL AND OIL
c
d
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