What is the normal temperature range for the Nissan Teana's coolant temperature gauge?

[AryaRose]

Nissan Teana's normal operating temperature ranges between 80-90 degrees Celsius. 1、Note： When starting the engine, the coolant temperature gauge reading should not be lower than 50°C; during normal vehicle operation, the proper gauge reading should remain between 70°C~90°C. 2、Effects of overheating on the engine： Thermal expansion of engine components will reduce clearance between moving parts, accelerating engine wear. Overheating also decreases oil viscosity, further increasing component wear and reducing engine lifespan. This may cause cylinder head gasket failure, resulting in cross-contamination between coolant channels, oil passages, and combustion chambers - allowing oil to enter the radiator and coolant to mix with engine oil.