Toyota 2008 Camry Owner's Manual page 454

6-1. Specifications
1
* : 0W-20 is the oil that provides the optimal level of fuel efficiency.
2
* : 5W-30 is the oil that provides the optimal level of fuel efficiency.
Oil viscosity
l 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.
l The 30 in 5W-30 indicates the oil viscosity when the oil is at its oper-
ating temperature. An oil with a higher viscosity may be better suited
if the vehicle is operated at high speeds, or under extreme load con-
ditions.
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