6-6
Indmar Marine Engines
Synthetic Oil
For the engines that come from Indmar with
conventional oil, synthetic oil that meets our viscosity
requirements and meets or exceeds API SL/SJ/CI-4,
CH-4, CG-4 is acceptable to use after 100 hours of
operation with the recommended oil. The use of syn-
thetic oil does not change the requirement of 50 hour
(25 hour in severe conditions) oil change intervals.
Changing Oil
Change your engine oil after the first 10-20 hours of
operation. Then change oil every 50 hours (25 in
severe conditions) or annually, whichever comes first.
To maximize engine life, change the oil filter at every
oil change.
Figure 6.4 – Oil Filter
Indmar recommends all engine maintenance procedures
be performed by your dealer, including oil changes. If
you must perform the oil change yourself, operate the
engine to full operating temperature.