Toyota AYGO Manual page 412

412
9-1. Specifications
Oil viscosity (5W-40 is explained here as an example):
• The 5W in 5W-40 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 40 in 5W-40 indicates the viscosity characteristic of the oil
when the oil is at high temperature. An oil with a higher viscosity
(one with a higher value) may be better suited if the vehicle is
operated at high speeds, or under extreme load conditions.
How to read oil container labels:
API registered mark is added to some oil containers to help you
select the oil you should use.
API Service Symbol
Top portion: "API SERVICE SM"
means the oil quality designa-
tion by American Petroleum
Institute (API).
Center portion: "SAE 5W-40"
means the SAE viscosity grade.
Lower
serving" means that the oil has
fuel-saving and environmental
protection capabilities.
AYGO_EE_OM99J92E
portion: "Energy-Con-