Operation Manual

1. API certification mark
2. API service symbol
ENGINE OIL AND OIL FILTER
RECOMMENDATION
Selecting the correct oil
It is essential to choose the correct grade,
quality, and viscosity engine oil to ensure
satisfactory engine life and performance,
see 0Capacities and recommended
fuel/lubricants0 in this section. INFINITI
recommends the use of an energy con-
serving oil in order to improve fuel
economy.
Select only engine oils that meet the
American Petroleum Institute (API) certifi-
cation or International Lubricant Stan-
dardization and Approval Committee
(ILSAC) certification and SAE viscosity
standard. These oils have the API certifi-
cation mark on the front of the container.
Oils which do not have the specified
quality label should not be used as they
could cause engine damage.
Oil additives
INFINITI does not recommend the use of
oil additives. The use of an oil additive is
not necessary when the proper oil type is
used and maintenance intervals are fol-
lowed.
Oil which may contain foreign matter or
has been previously used should not be
used.
Oil viscosity
The engine oil viscosity or thickness
changes with temperature. Because of
this, it is important that the engine oil vis-
cosity be selected based on the tempera-
tures at which the vehicle will be oper-
ated before the next oil change. Choosing
an oil viscosity other than that recom-
mended could cause serious engine dam-
age.
STI0505
Technical and consumer information 9-5
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