TOHATSU BFT 75A Owner's Manual page 60

SAE 10W-30 is recommended for
general use.
AMBIENT TEMPERATURE
<Inspection and Refilling>
UPPER
LEVEL
MARK
LOWER
LEVEL
MARK
OIL LEVEL DIPSTICK
PRE-OPERATION CHECKS
1. Position the outboard motor
vertically, and remove the engine
cover.
2. Remove the oil level dipstick and
wipe with a clean rag.
3. Reinsert the dipstick all the way in,
then pull it out and read the level. If
near or below the lower level mark,
remove the oil filler cap and fill to
the upper level mark with the
recommended oil. Tighten the oil
filler cap and install the dipstick
securely. Do not overtighten.
When the engine oil is contaminated
or discolored, replace with the fresh
engine oil (see page 124 for
replacement interval and procedure).
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