How often should the Verna thermostat be replaced?

[ColtonLee]

The general replacement interval for the Verna thermostat is approximately 50,000 kilometers. Based on an annual mileage of 20,000 kilometers, the thermostat's service life is typically around 2-3 years. Below is an introduction to the thermostat: 1. The function of the thermostat is to control the coolant's circulation mode. When the thermostat opens, the coolant undergoes a large circulation, and when it closes, the coolant undergoes a small circulation. 2. The large circulation flow path is: water jacket → thermostat main valve → radiator upper water chamber → cooling tube → radiator lower water chamber → water pump inlet → water pump → water jacket. The small circulation flow path is: water jacket → thermostat bypass hole → bypass pipe → water pump inlet → water pump → water jacket. 3. A damaged thermostat has two main effects: first, incomplete combustion in the car, leading to increased fuel consumption; second, excessive heat dissipation wastes fuel, as the energy from gasoline fuel converts to heat, and excessive heat dissipation accelerates engine wear.