What's the difference between six cars in five countries (what's the difference between a car in five countries and a car in six countries)

What's the difference between China Five Cars and China Six Cars (what's the difference between China Five Cars and China Six Cars)? The difference between the national five cars and the national six cars is the difference of automobile exhaust: the limit of carbon monoxide content in the exhaust of the national five cars is1000 mg; Every kilometer; The limit of carbon monoxide content in the tail gas of vehicles in China is 700mg per kilometer. Vehicle emission standards refer to the regulations on the contents of carbon monoxide, hydrocarbons, nitrogen oxides, particulates and soot emitted from exhaust gas. The solution to the problem of substandard automobile exhaust emission is:

1. Clean the throttle, three-way catalyst and fuel injector;

2. Replace the piston sealing ring and oxygen sensor;

3. Use high-quality fuel and add fuel cleaner.

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