How to choose the oil parameters

In addition to the car with gasoline, vehicle owners are most concerned about oil is engine oil. But for ordinary owners, in the selection of oil often confused - what kind of oil for my car? There is no better motor oil can improve the power of the engine to reduce noise? Whether oil change mileage km it? whether extended? problems, we will elect novice oil series for answer

● Oil two important parameters

The choice of oil, our main concern is two parameters - SAE viscosity grade "and" API quality grade. These two parameters in the Oil Tanks body will be clearly marked. Here we learn more about the more details of these two parameters.
Common market oil SAE (Society of Automotive Engineers) standard and its viscosity grading. The body will be printed in the oil tank oil viscosity values​​, such as "0W30". "0W30", "W" in front of "0" indicates the low-temperature viscosity grade oil to level 0, the "W" "30" indicates the oil the high-temperature viscosity grade Level 30.