Indmar Marine Engines
6-5
Do not overfill. If your oil level is above the
full mark on the dipstick, the engine may be
damaged.
Indmar uses and recommends Pennzoil Marine 15W40
in all 5.7L, 6.0L and LS7 engines and Pennzoil Heavy
Duty 40W in all 6.2L (383), 7.4L (454), 8.1L (496) and
8.2L (502) engines. This oil meets the API Service CI-4,
CH-4, CG-4, CF-4, and CF/SL. If engine is to be used in
conditions below 20 F (-7 C), use Pennzoil 10W30 meet-
ing the above API specifications.
The use of engine oil other than the recom-
mended viscosity with an API SJ/CG4 desig-
nation can cause engine damage. Damage to
your engine caused by the use of improper
oils is not covered by your warranty.
Synthetic Oil
Synthetic oil that meets our viscosity requirements and
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 synthetic 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.
OME0502-07 Body.qxd 6/14/06 10:38 AM Page 6-5
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