What is the difference between oil parameters 0W and 5W?

This is the knowledge of engine oil labeling. The W in the text is actually the abbreviation of the English word "winter", which represents this engine oil, which is common in summer and winter. (In fact, this is the case with civil engine oils now).

The number in front of W stands for "Minimum Applicable Oil Temperature". That is, how well the oil flows at low temperatures. For example, 5 represents the minimum applicable temperature of the engine oil, which is about minus 25 degrees.

If it is below -25 degrees, you should be careful. Because it can become very viscous and difficult to flow. (Ask a lot of articles are written wrong, they write 5w can be used to minus 30 degrees, in fact, it is not accurate)

The number 0 indicates that the minimum applicable temperature of the oil can reach minus 35 degrees. Then in the northeast and northwest of China, the outdoor temperature will actually be very cold in winter, so you need to consider 0w engine oil.

What is the difference between oil parameters 0w and 5w? The only difference is the minimum applicable temperature.

5W can be used in environments of minus 30 degrees, while 0W can be used in environments of minus 35 degrees. Both oils have the same high temperature viscosity with an index of 30. The number in front of the oil W represents the flow viscosity at low temperatures, the higher this value, the better the low temperature fluidity of the engine oil, and the better the protection ability of the engine when the vehicle is cold started.

0W or 5W are both oil characteristics that indicate support for cold-start performance. An oil with a lower pre-W value is easier to start in cold weather, and is more suitable for a higher viscosity if the vehicle is operating at high speeds or under extreme loads. A 0w oil is easier to start in cold weather than a 5w oil.

To put it simply, 0W and 5W are not the same as the low temperatures they can withstand, 0W can withstand minus 35 degrees, 5W is minus 25, it is better to use 0W in winter, and the engine can be protected in a cold start and low temperature state. I am located in Jiangsu, and the change is 0W30 GT Magic Red engine oil, the base oil of the four types of PAO is of good quality, low temperature fluidity and high temperature resistance, universal in all seasons, and better than the previous engine oil.

0W is better, can withstand lower temperatures, low temperature cold start and protection performance is better than 5W. But I always feel that you change Mobil to be fake, I bought it in *** last year is fake, the subject is still cautious. I now only dare to buy magic red engine oil on the official website of GT, a niche brand, but there are no fakes, use the direction, and it is a base oil of four types of PAO, long-lasting and durable, and cost-effective maintenance.

The viscosity is different, the low temperature performance is different, and 0W will be better than 5W overall.

The oil label consists of two parts: grading and viscosity specification. The oil designation usually indicates viscosity and quality. The specific interpretation is as follows: the viscosity of lubricating oil is mostly marked by SAE and other grades, and SAE is the abbreviation of the English "Society of Automotive Engineers".

w stands for winter (winter), the more ** the number in front of it, the better the low temperature fluidity of the engine oil, the lower the ambient temperature available for use, and the better the protection ability of the engine during cold start; The number after the "W" (after a horizontal line) is an indicator of the high temperature resistance of the engine oil, and the higher the value, the better the protection performance of the engine oil at high temperatures.

The label after the classification of the engine oil indicates its viscosity specifications, for example, in "15w w-40", "w" means winter (winter), the more ** the number in front of it, the better the low temperature fluidity of the engine oil, the lower the ambient temperature available for use, and the better the protection ability of the engine during cold start, such as 5w represents the external low temperature resistance -30 °C, and the 20w low temperature resistance is -15 °, and the number behind the 20w low temperature resistance is -15 ° represents the kinematic viscosity of the oil at 100, the higher the value, the higher the viscosity.

40 represents 100 degrees Celsius, and the kinematic viscosity standard is between to, which is definitely not what some people say can be used below 40.

The oil classification is indicated using a two-letter combination. The series starting with "S" represents gasoline engine oil, and the general specifications are from SA to SN (in alphabetical order, but there is no SI in it), and with each additional letter, the performance of the oil will be better than the previous one, and there will be more additives in the oil to protect the engine.

The lower the letter, the higher the quality grade, and most of the oil grades in international brands are above the SF grade. The series starting with "C" represents diesel engine oils. If the letters "S" and "C" are present at the same time, it means that the oil is a general purpose type of gasoline and diesel.

Low temperature performance is different, the quality depends on whether the brand is the same, if the same, 0W as a whole will be better than 5W, if you want to protect the engine better, you can use a better fully synthetic engine oil, like the GT Magic Red that has been used more high-end now, PAO four types of base oil, the quality is better than the ordinary three types of base oil, and the protection of the engine is better in the long run.

0W and 5W refer to the low temperature fluidity of the oil. If it is not in Inner Mongolia or a particularly cold place in the Northeast, there is not much difference between 0w and 5w.