We mentioned the three catalytic converter failure of the two main factors are plugging dirt and structural damage.So want to protect the three catalytic converter to avoid the above two conditions.There are generally the following points for attention.

 1. Use qualified oil, because the oil will be indirectly involved in the engine combustion through the crankcase ventilation system, and some of the inferior oil in some additives after combustion products will have a bad effect on the three catalytic converter.

 2. Add qualified gasoline, because the inferior gasoline may also have some non-environmental additives, the combustion products may also affect the three catalytic converter.

 3. Timely treatment of engine burning oil, because the oil combustion will produce a lot of sediment, there is a risk of clogging the three catalytic converter.

 The engine fault light is turned on in time for treatment and maintenance.Because the engine fault light is on the representative of the exhaust system, long time not dealt with it is easy to cause the three catalytic converter damage.For example, the mixture is too thick, there are a lot of carbon particles in the exhaust will block the catalyst.Or the mixture is too thin, the exhaust temperature is too high, may lead to the catalyst overheating deformation. 

4. Regularly replace the spark plug, because the spark plug aging will lead to the engine misfire rate increase, the so-called misfire rate is ignition failure, the mixture is not burned is emitted. And three catalytic converter working temperature is very high, combustible mixture through the three catalytic converter when the combustion produces a high temperature, may lead to three catalytic converter burned out.

 5. Pay attention to observe through the bad road, try to avoid the bottom, because some cars three catalytic converter is located below the chassis, bottom in case of rubbing three catalytic converter may lead to its rupture.

 6. Three catalytic converter located in the chassis of the vehicle try to avoid deep wading, because the three catalytic converter working temperature at about 400 degrees Celsius, sudden contact with cold water cold excitation after the catalyst shell will appear thermal expansion and contraction, may affect the catalyst body.

 7. The exhaust system is loose to be fastened in time for maintenance, to avoid vibration caused by catalytic damage.

 8. Try to avoid long time in situ idle, because some engines do not have variable timing system, at idle because of the influence of valve overlap angle will exist a large number of residual exhaust gas, the engine mixture will be enriched to ensure stable combustion, there will be more particles in the exhaust.