The engine oil used for Volkswagen new sagitar 1.6 is 5W30 or 5W-40. It is recommended to use fully synthetic or semi-synthetic engine oil. Choose the right lubricant, not the expensive one. The lubricant market is mixed. In general, it is difficult to distinguish the quality of lubricating oil only by its appearance. Therefore, when purchasing lubricating oil, we should pay attention to choosing famous brand lubricating oil as far as possible, and it is best to go to a regular 4S shop for maintenance.
As we all know, the lubricating oil engine is the heart of the car. There are many metal surfaces rubbing against each other in the engine. These parts have fast moving speed and poor environment, and the working temperature can reach 400℃ to 600℃ ... Under such harsh working conditions, only qualified lubricating oil can reduce the wear of engine parts and prolong their service life. Qualified lubricating oil first needs good lubrication and wear reduction function, followed by cooling, sealing and leakage prevention, rust prevention and corrosion prevention, shock absorption and buffering.
At present, lubricants on the market can be divided into mineral oil and synthetic oil because of the difference of base oil (vegetable oil is not counted because of its scarce output). Synthetic oils are divided into: fully synthetic and semi-synthetic.
The biggest difference between synthetic oil and mineral oil is that synthetic oil has a wider service temperature and a longer service life, but its cost is higher; For the same oil film requirement, synthetic oil can be achieved with lower viscosity, while mineral oil needs higher viscosity than synthetic oil to achieve this requirement. In the same working environment, the service life of synthetic oil is much longer than that of mineral oil, so the cost is higher, but compared with the number of oil changes, it is not much higher than that of mineral oil.
Now there are more and more brands of automobile lubricating oil, which play a decisive role in the automobile market. At present, the famous automobile lubricating oil brands in China are Kunlun, Great Wall and Uni-President, and the most famous brands abroad are Shell, Mobil and Castrol. Therefore, it is recommended to go to a regular 4S shop for maintenance.
Quality identification of lubricating oil
1. Observe the color of lubricating oil carefully. Domestic genuine engine oil is mostly light blue with bright color and even flow. Anything with uneven color and different color lines when flowing is fake or deteriorated lubricating oil. Imported lubricating oil is golden and slightly blue in color, crystal clear and transparent, the oil drum is beautifully made, the edges of patterns and codes are clear and tidy, and there is no color leakage or overlap, otherwise it is a fake.
2. Look carefully at the packaging and printing quality of inferior lubricating oil, and the handwriting is unclear. However, there are also counterfeit lubricants that are recycled from genuine packaging, which is difficult to identify.
Generally speaking, the quality of genuine packaging is better. The packing box is legible, with bright overprint colors, indicating product name, specification, quantity, registered trademark, factory name, address and telephone number, with certificate of approval and inspector's seal.
3. Lubricating oil with qualified smell should have no special smell. If the smell is pungent and smelly, it is bad or inferior.