Lexus ES350 Service Manual page 507

NOTICE
When adding engine coolant
■
Add coolant slowly after the engine has cooled down sufficiently. Adding cool coolant
to a hot engine too quickly can cause damage to the engine.
To prevent damage to the cooling system
■
Observe the following precautions:
Avoid contaminating the coolant with foreign matter (such as sand or dust etc.).
●
Do not use any coolant additives.
●
ES350_OM_OM33B64U_(U)
8-2. Steps to take in an emergency
I n f o r ma t i o n P r o v i d e d b y :
507
8