The differences between Euro 5 and China 6 emission standards are as follows: Different carbon monoxide emission standards: Euro 5 has a carbon monoxide emission limit below 1.0 grams per kilometer; China 6A and 6B have carbon monoxide emission limits of 0.7 and 0.5 grams per kilometer respectively. Different maximum particulate emission standards: Euro 5 has a maximum particulate emission of 0.005 grams per kilometer; China 6A and 6B have maximum particulate emissions of 0.0045 and 0.003 grams per kilometer. Different implementation times: The Euro 5 standard has been implemented in Europe since 2009 as the motor vehicle emission standard. China 6 has been implemented since July 1, 2019. Different letter representations: Euro 5 is represented by 'V'; China 6 is represented by 'VI'. Different test procedures: The Type I test procedure has been modified to adopt the Worldwide Harmonized Light Vehicles Test Procedure (WLTP). Different Type II tests: The Type II test has been changed to the Real Driving Emissions (RDE) test, and the Type IV test has been modified. Different Type VI test requirements: The Type VI test has added control requirements for diesel vehicles and NOx emissions. Different pollutant emission limits: Requirements for pollutant emission tests during refueling have been added, and the emission limits for various pollutants have been tightened. Different experimental requirements: The test requirements for the effective volume and initial working capacity of the carbon canister have been added; the volume of the catalytic converter has been increased; the judgment method for production consistency checks has been revised, and new production consistency check requirements for catalytic converters and carbon canisters have been added. Different inspection requirements: In-use compliance has added inspection requirements for evaporative emissions and pollutant emissions during refueling; confirmation checks for type-approval sample vehicles have been added. Different technical requirements: The technical requirements for OBD and reference fuels for testing have been modified. The Euro 5 specifications are as follows: The maximum particulate emission for vehicles is 0.005 grams per kilometer, and nitrogen oxide emissions are 0.2 grams per kilometer. After the implementation of the 'Euro V' standard, all new diesel vehicles must be equipped with particulate filters. Euro 5 gasoline engine emission limits: CO: 1.00g/km, HC: 0.10g/km, NOX: 0.06g/km, PM: 0.005g/km. Euro 5 diesel engine emission limits: CO: 0.50g/km, HC+NOX: 0.17g/km, NOX: 0.08g/km. China 6 has two specifications: China 6a and China 6b, as follows: China 6a specifications: Gasoline vehicles must not emit more than 700 milligrams of carbon monoxide per kilometer driven. Gasoline vehicles must not emit more than 68 milligrams of non-methane hydrocarbons per kilometer driven. Gasoline vehicles must not emit more than 60 milligrams of nitrogen oxides per kilometer driven. Gasoline vehicles must not emit more than 4.5 milligrams of PM fine particles per kilometer driven. China 6b specifications: Gasoline vehicles must not emit more than 500 milligrams of carbon monoxide per kilometer driven. Gasoline vehicles must not emit more than 35 milligrams of non-methane hydrocarbons per kilometer driven. Gasoline vehicles must not emit more than 35 milligrams of nitrogen oxides per kilometer driven. Gasoline vehicles must not emit more than 3 milligrams of PM fine particles per kilometer driven. Affected by the China 6 emission policy, the resale value of vehicles will be significantly impacted. For car owners, if they purchase a truck for freight transport with a loan, the depreciation of the vehicle after repaying the loan is equivalent to the net profit earned by the owner during that period. The higher the residual value, the more the owner earns. Therefore, from this perspective, China 6 vehicles with longer service life and more road rights have more advantages.
