"Country 6 " came quickly. According to ministry of national environmental protection " air pollution prevention and cure worked 2017 plan " requirement, the 9 ground city such as peace of rich of Jinan, Zi, aid will supply in the round at will rising on October 1 complete " country 6: Standard car uses steam, diesel oil, shift to an earlier date than other city 15 months are entered " country 6 " times.
This " country 6 " discharge a standard to want to compare " country 5 " strict 50% above, below the circumstance that expedited operating mode and test influence, benzine car is reduced about the discharge capacity of carbon monoxide 50% , total carbon oxide and the discharge capacity that are not methane total hydrocarbon should drop 50% , azotic hydrogen compound is discharged should drop 42% . This asks " country 6 " the fuel oil below the standard is tasted should enhance an arrangement again, so " country 6 " with " country 5 " is oil tasted what difference to have after all? For this, small made up specially to consult on electron of engine of development of assembly of steam people power manager Chen Feng, see an expert how say.
Q1: relatively at " country 5 " , "Country 6 " is oil tasted what differs?
Chen Feng: "Country 6 " benzine is added fathered alkene content is restricted to be worth, by before 24% fall respectively to " country 6 " of A phase 18% 15% with B phase; Add content of Yan Lefang hydrocarbon to be restricted to be worth next by 40% fall to 35% , in addition, add fathered the bounds of stupid content is worth, by 1% drop to 0.8% (Yan Yuou alliance the standard of 1% ) ; Add Cheng of severe benzine heat up in a steamer at the same time 50% evaporate temperature is restricted to be worth, by 120 fall to 110.
Carbon is contained among alkene the volume is very high, easy generation is certain " colloid " , can increase engine to accumulate carbon, so this " country 6 " benzine, engine can decrease to accumulate carbon on certain level, increase the protection to its. Benzene is a kind of accepted carcinogen, "Country 6 " standard car was reduced with upper limit of content of the benzene in alcohol benzine 20% , reduced the harm of car tail gas to human body further.
In the meantime, upgrade this " country 6 " , to content of gasoline engine grain discharge also having firm demand, "Country 5 " tag benzine grain content to discharge be restricted to be worth it is every kilometer for grain content quality 4.5 milligram, and " country 6 " content of standard benzine grain is discharged be restricted to be worth quality of requirement grain content to be every kilometer 3 milligram.
Q2: "Country 5 " is oil tasted and " country 6 " whether does standard oil mix to you can cause an effect to car?
Chen Feng: 6 benzine won't be opposite the country car causes any loss. "Country 5 " upgrade " country 6 " in the process, oil is tasted mix use the performance that won't affect a car, at the appointed time car advocate change when oil is tasted, need not clean gasoline tank oil path, the oil that choice and car photograph need to match grade only when cheering is tasted, after undertaking a few times cheering, can naturally is finished transfer.
Q3: Is oil tasted in upgrade how does grade of the petrolic in the process change?
Chen Feng: "Country 5 " upgrade " country 6 " can not change petrolic grade. Oil is tasted upgrade in the process, can cause the change of benzine grade because of the change of octane number occasionally. For instance before in " country 4 " upgrade " country 5 " when as a result of petrolic octane number from 93 dropped 92, because this benzine grade drops by 93 original,went to 92, in the meantime, "Country 4 " after 97 benzine upgrade, turned into " country 5 " 95 benzine. Do not cross this " country 5 " upgrade " country 6 " the change that won't cause benzine grade, in addition, the grade of derv also won't produce a change.
Q4: Whether does grade jump over expensive gas to had been jumped over to the car?
Chen Feng: Do not have this view. Actually, should according to engine compression ratio different the benzine that will choose different grade. If be not added by the requirement, the result may be just the opposite to what one wished.
If the engine of high compression ratio chose the benzine of low grade, can make drama of air cylinder temperature rises, benzine combustion is not complete, engine shakes intense, reduce traffic motive force thereby, even engine is damaged. Same, if the engine of low compression ratio joins the benzine of high grade, can appear " sluggish is lighted " phenomenon, the phenomenon with inadequate combustion can appear like, also do not have what advantage to engine.
Accordingly, no matter you drive what car, when cheering, need to ask to add the fuel that notes corresponding grade according to the manual only can. Be not is grade jumps over tall oil to had been jumped over. In addition, to the car advocate people care upgrade " country 6 " later the problem that whether can oil price rise, the expert did not give out to reply clearly. Nevertheless, " profit is good " the message is, new round oil is tasted upgrade, to a lot of entrance cars that often give trouble before, after using the oil after upgrading to taste, function is normal, this explains oil is tasted and car matched, and can lengthen car maintain periodic.
