BYD L3 AUTO Owner's Manual page 175

Recommended viscosity (SAE):
Predicted temperature range prior
to next oil change
In extremely cold weather, SAE 10W -
30 oil or oil with higher viscosity may
cause difficulty to start the engine, so
SAE 5W-30 engine
recommended.
BYD L3 AUTO Owner's Manual
API Classification Label
oil is
ILSAC Certification Label
Engine Oil Identification Label
One or two API registration label is
available on some engine tank for
reference when choosing oil.
API classification label is somewhere
on the outside of the tank.
Engine oil quality is indicated on the
label top according to API (American
Petroleum Institute) standard, such as
SL. SAE viscosity is indicated at the
middle of the label, such as 10W-30.
―Energy-Conserving‖ symbol at the
bottom of the label indicates that it
can save engine oil.
Certification of ILSAC (International
Lubricant Standardization
Approval Committee) is at the front
side of the oil tank.
Self-maintenance 7-9
and