Volvo Penta 4.3GL Instruction Book page 45

Oil and oil filters. Replacement
The oil should be changed when the engine is hot.
Stop the engine. Suck out oil through the oil scaveng-
ing/bilge pipe.
WARNING! Hot oil can cause burns.
Unscrew the old filter. NOTE! Avoid oil spillage.
Check the mating surface of the engine is clean.
Moisten the filter rubber gasket with a little oil. Screw
on the new filter by hand until it is in contact with the
mating surface. And then a further half turn but no
more!
Top up oil to correct level. Start the engine and let it
idle. Stop the engine. Check that there are no leaks
round the oil filter and the oil level, top up if necessa-
ry. See chapter Technical Data for the grade of oil.
NOTE! Collect up the old oil and filter for deposit at a
proper disposal site.
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