Mercury 40 Jet Manual page 47

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
FUEL & OIL
c
39
d
c - Dipstick
d - Oil filler cap
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