Toyota RAV4 EE Owner's Manual page 523

DO−IT−YOURSELF MAINTENANCE: Engine and Chassis
The 5W portion of the oil viscosity rating
indicates the characteristic of the oil which
allows cold startability. Oils with a lower
value before the W allow for easier
starting of the engine in cold weather.
The 30 in 5W−30 indicates
viscosity when the oil is at its operating
temperature. An oil with a higher viscosity
may be better suited if the vehicle is
operated at high speeds, or under extreme
load conditions.
How to read oil container labels
Either or both API registered marks are
added to some oil containers to help you
select the oil you should use.
API Service Symbol
Top portion: The oil quality designation by
API (American Petroleum Institute) (SN)
Center portion: The SAE viscosity grade
(SAE 5W−30)
Lower portion: "Resource−Conserving"
means that the oil has fuel saving and
environmental protection capabilities.
RAV4_EE
the oil
ILSAC Certification Mark
The ILSAC
Standardization and Approval Committee)
Certification Mark is displayed on the front
of the container.
513
(International Lubricant
Finish