When you encounter an emergency car,，I mistake it because of the "deception" of the oil meter，It will inevitably make popularity corrupted，Let's talk about the principle of the oil meter work below。The main reason for the failure of the oil meter isoil level sensor惹。Usually，Inaccurate scale of the oil meter will occur in the following situations:
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Specific monetization:The scale of the oil meter is fast and slow.
Analysis:This kind of fuel meter failure is more common。Under normal circumstances，The fuel meters of many models in the first half will fall slowly，After passing the intermediate scale，will drop faster。This is mainly related to the design of oil pumps used to reflect the amount of oil，It cannot uniformly reflect the consumption of gasoline，After all, this absolutely uniform change is difficult to achieve，It is not easy to change through maintenance and replacement accessories。
Symptom 2: The scale of the fuel meter suddenly drops to zero
Specific performance:Seeing Shangyu two grids on the road，But after a long distance, it dropped directly to zero。
Analysis:The instructions of the oil meter almost depend on the oil level sensor，So the fuel meter pointer is actually just a intuitive way to express the oil level sensor。This kind of problem occurs，Then it means that there is a problem with the oil level sensor of the vehicle。Generally due to stains due to the oil level sensor，Need to clean it in time。Since the gasoline contains a lot of impurities，and the oil level sensor has been soaked in it，After a long time, it will be contaminated，directly affects the accuracy of the indication。If the vehicle has been used for more than 5 years，This kind of fuel meter indicates the case，It is likely that the oil level sensor has physical wear，Unable to continue working normally。
Symptoms 3: Oil gauge scale increases
Specific performance:The pointer of the oil meter has been staying at a certain position，Some even drive for a while，Scale display value has risen。
Analysis:The cause of this is mainly due to the connecting rod between the oil level sensor and the floating child.，Makes the floats from floating up and down normally，So that the sensor will not change，So the oil meter pointer is fixed in a certain position。
How to let the fuel meter tell the truth?
◆ First, try to choose gasoline with better oil
Clean gasoline will make the impurities in the oil pump less，greatly reduce the probability of failure to fail in the fuel meter。
◆ Second, regular cleaning of oil circuit and fuel tank
The vehicle drove about 5000km every step，Use the oil road cleaner to clean the car's oil circuit，Wash the fuel tank once every two years。Due to long -term use，A thick layer of silt will appear at the bottom of the fuel tank，This will also indirectly affect the accuracy of the oil meter。
