What is the reason why the oil meter lamp is yellow?

What is the reason why the oil meter lamp is yellow? When the yellow indicator light on the fuel gauge lights up, it means it's time to refuel. It also means that there is not much fuel in the vehicle's fuel tank. At this time, most vehicles need to refuel, and it is best to refuel before the yellow light is on. At present, most gasoline vehicles use electric gasoline pumps and electronic fuel sensors. They need to be immersed in ten array temperatures at the steam outlet. If there is noise, but the noise is too low, the oil pump can't absorb enough oil, and the heat dissipation will be greatly affected. If the heat dissipation is not timely, it will even affect the combustion; If the automobile fuel tank is not cleaned for a long time, there are many impurities at the bottom of the automobile fuel tank and less fuel, which is easy to block oil; At the same time, when the fuel is insufficient, it will increase the workload of the gasoline pump and affect the cooling of the oil pump rotor. It affects the service life of the oil pump and is considered as the protection of the oil pump. In addition, too low oil may also affect the oxygen sensor of the exhaust system; In summer, the temperature is high. If your car often runs at a low oil level, it will easily affect the rapid evaporation of gasoline. If you don't nest in the oil circuit immediately, the engine will rotate unsteadily or even turn off, making it difficult to start. Of course, when using a new car, you should always check the fuel gauge. When the fuel gauge shows that only a quarter of the fuel is left, come on. @20 19