What does 'Refer to the owner's manual for coolant refill' mean?

[EmeryFitz]

Refer to the owner's manual for coolant refill is a reminder to the vehicle owner that coolant needs to be refilled. The following is an introduction about coolant: 1. Introduction to coolant: Coolant, the full name should be antifreeze coolant. It means coolant with antifreeze function. 2. Coolant can prevent the coolant from freezing and cracking the radiator and freezing the engine cylinder block during parking in cold seasons. 2. Functions of coolant: (1) Winter antifreeze: Prevents the coolant from freezing and causing the radiator and engine block to crack after the car is parked in winter. (2) Anti-corrosion: Prevents corrosion in the cooling system. (3) Anti-scaling: Reduces the formation of scale to avoid clogging the circulation pipes and affecting the heat dissipation function of the cooling system. (4) Anti-boiling: Meets the heat dissipation and cooling needs of high-load engines.