We all know that lubricating oil is very important for cars. It can not only reduce engine wear and failure, but also prolong the service life of vehicles. According to the statistics of relevant data on the network, the faults caused by poor lubrication of vehicles account for 41% of the total faults. It can be seen that most car owners do not do a good job in car lubrication, especially in the use of lubricating oil, there are often some wrong understandings. On the one hand, it causes the loss and waste of lubricating oil, on the other hand, it also affects the performance of cars and causes car faults.
Myth 1: the higher the viscosity of lubricating oil, the better
Many car owners believe that the higher the viscosity of the lubricating oil, the better, and the higher the brand of the lubricating oil (centistoke number of kinematic viscosity at 100 ℃). In fact, this understanding is one-sided. The reason why I think so is that the greater the viscosity of lubricating oil, the thicker the oil film on the friction surface of each moving part will be. The oil film thickness can effectively protect the friction surface and prevent wear. However, with the increase of oil film thickness, the friction resistance will also increase, which will cause power loss and increase fuel consumption. Foreign data show that the viscosity of lubricating oil decreases by 1 centistoke, saving about 1.5% of fuel.
In addition, experiments have also proved that when the viscosity of lubricating oil exceeds the requirements, the wear of machine parts will increase, because about 2/3 of the wear of machine parts occurs in the early stage of starting. This is because the lubricating oil with high viscosity flows slowly, and the car cannot be replenished to the friction surface in time to form a lubricating oil film when starting at low temperature, which makes the parts in dry friction and semi dry friction for a long time, resulting in increased wear of the parts.
Therefore, the viscosity of engine lubricating oil is not the greater the better, but the lubricating oil with low viscosity should be selected as far as possible under the condition of ensuring lubrication. The low viscosity of lubricating oil is one of the current oil saving measures.
Myth 2: the more lubricating oil, the better?
The main function of lubricating oil is to lubricate machinery, reduce friction and wear. Insufficient oil will accelerate the deterioration of lubricating oil, and even cause the bonding and abnormal wear of parts and components due to lack of oil. Many car owners think that in order to avoid fuel shortage, I will add more. In fact, it is not good to add too much lubricating oil. This is because too much lubricating oil will rush into the combustion chamber from the gap between the cylinder and the piston to produce carbon deposition. In addition, too much lubricating oil will increase the mixing resistance of the crankshaft connecting rod and increase the fuel consumption. The experiment shows that when the refueling volume exceeds the standard by 1%, the fuel consumption will increase by 1.2%. Therefore, refueling should follow the principle of "small amount, frequent refueling" to keep the oil level between 2/4-4/4.
The above is what OEM processing lubricants introduce to you. Thank you for checking our company's information in your busy schedule. If you want to know more, you are welcome to call for consultation! https://www.smxnykj.com/