FNM HPE 300 Owner's Manual page 46

Marine Diesel Engines
3. Reintroduce the oil dipstick in the guide pipe, take it out and check the level.
A- If the oil is at level A on the dipstick, you don't need to refill.
B- If the oil is at level B, fill up to level A.
C-If the oil is at level C or lower than that, then you must refill up to level A if possible, in any case the
level must be equal to or greater than B.
The oil level must never exceed level mark A.
4. Refill oil through the oil refill cap as shown in the figure.
ENG rel. 1/11
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WNER S ANUAL
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Engine maintenance
HPE300
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