Should You Top Up or Replace Insufficient Engine Coolant?

[PaisleyDella]

Whether to top up or replace insufficient engine coolant depends on different situations: if the coolant is still usable but insufficient, simply top it up; if the coolant is no longer usable and insufficient, then it needs to be replaced. The functions of engine coolant are: 1. Providing anti-corrosion protection for cooling system components; 2. Preventing scale formation to avoid reducing the radiator's heat dissipation efficiency; 3. Ensuring the engine operates within the normal temperature range. Precautions for using coolant include: 1. Avoid mixing different types of coolant; 2. Steer clear of low-quality coolant products; 3. Do not directly add concentrated coolant to prevent coolant deterioration and low-temperature viscosity issues.