Oil can be divided into "synthetic oil " and " mineral oil " , labeled "M", "N" or in Chinese means " synthetic " marked belongs synthetic lubricants ( such as SM, SN, total synthesis ) , not Note M, N , and " synthetic " mineral belonging lubricants ( such as SE, SF). Grade synthetic lubricants same price is higher than mineral oil .

According Kero Throttle Valve  noted that at present, the highest level of lubricating oil marked letters "SN", and marked "SN" high-grade lubricants , there are only several well-known brands in the world has just developed, the market is still very less . If you marked "M" or "N" or " fully synthetic " grade lubricants, upscale sedans can rest assured that any use , including for sports cars, racing both are applicable .
Motor vehicle lubricants are essential protective equipment, use of substandard automotive lubricants , like human consumption, waste oil , the consequences will be very serious.

Currently automobile manufacturers themselves do not produce oil, oil domestic car companies , majority from Sinopec , CNOOC , PetroChina and other large oil companies bought large cans , and then packaging, or entrust Sinopec, CNOOC, CNPC and other production , marked with their own automotive company's name has become its own car brand special oil .

Staff said that these so-called " special oil " is actually precisely lubricant manufacturer petrochemical enterprises by car manufacturers ' commission processing , packaging " together . Even some car manufacturers , car 4S shops Ministry commissioned a number of small factories processing , this part is difficult to guarantee the quality of the oil .

Lubricants own classification of different categories, but also the brand , grade differences , these are the factors that affect the oil price , and 4S in a different store, also an oil , the same level , the price can big difference.

Oil price and the quality is not proportional to the price does not necessarily determine the quality , so buy more expensive the better lubricant than price , but their most critical appropriate , suitable lubricant level is preferred.
Normally, car engine oil in just the replacement, radiate golden yellow, but after a certain period of use , the color will darken. Although the color black, but it does not mean bad. Under normal circumstances, as long as you are not using fake, regardless of any brand of oil, its life cycle can be maintained at more than 5,000 km , 7,000 km -8000 km to only need to change the oil . Only long-term owners of bad driving habits , such as frequent Jicha , refueling too fast, speed at 3000 rpm or more frequently , oil replacement cycle will advance .

Eliminate brand vehicles must use special oil misunderstanding. Any brand of oil, as long as the viscosity and level matches your car you can use with the applicable requirements , especially in vehicles over the "three guarantees" after the deadline , but do not necessarily have to use the so-called car manufacturers so-called " original oil " , buy big brands , and with their car quality level corresponding to the lubricating oil in order to better protect the engine .

Experience in the automotive repair master is judged according to the automobile oil viscosity , rather than by the color to identify the need for oil changes . If you go to a regular store, each a replacement oil will have a corresponding record , and also to remind owners to replace next time . So Kero Throttle Valve recommendations read more about this knowledge , it will not be paralyzed by car clerk .