Honda BF40D Owner's Manual page 79

SEALING
WASHER
ENGINE OIL
DRAIN BOLT
4. Remove the engine oil drain bolt
and sealing washer.
5. Allow the used oil to drain
completely, then install a new
sealing washer on the engine oil
drain bolt, and tighten it securely.
6. Reinstall the drain bolt cover.
SERVICING YOUR OUTBOARD MOTOR
Improper disposal of engine oil can
be harmful to the environment. If you
change your own oil, please dispose
of the used oil properly. Put it in a
sealed container, and take it to a
recycling center. Do not discard it in
a trash bin, dump it on the ground, or
pour it down a drain.
7. With the outboard motor in a
vertical position, fill to the upper
limit mark on the dipstick (p. 74)
with the recommended oil.
Engine oil refill capacity:
Without oil filter change:
2.1 US qt (2.0 L)
With oil filter change:
2.2 US qt (2.1 L)
8. Install the oil filler cap and tighten
it securely.
9. Install and lock the engine cover.
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