The replacement of lubricants as an integral step in vehicle maintenance procedures has become a common sense for many vehicle owners. But what exactly can we do to replace it properly and choose a more cost-effective lubricant? In fact, the replacement of lubricants by vehicles is just like the way people eat. Through some metaphors of images, this problem can be well understood and solved.

Question 1: What oil does my car need to change, and how often does it change oil?

Metaphorical explanation: The time it takes to eat a meal and what to eat for each meal is determined by the person's physical condition and taste, not by food.

Technical explanation: The choice of engine oil and the oil mileage are determined by the operating conditions of the engine and the processing level of the engine itself, not by the lubricant. Owners can determine which grade (API) and what viscosity (SAE) of the lubricant should be used when changing oil, as the primary consideration when changing the oil, according to the regular maintenance section in the “Driver Manual” of the vehicle.

Question 2: My oil has additives and it is a good lubricant.

Metaphorical explanation: If someone says that my meal contains carbohydrates, protein, and fat, it is a nutritious meal, do you believe it?

Technical explanation: Lubricating oils are all produced from base oils and various additives. The reason why they have different grades and viscosities is due to the different grades of base oils and the different formulations of additives.

Question 3: Does adding additional additives to the engine help the engine work better?

Metaphorical explanation: If you say that lubricants are "automobile foods," then all kinds of additives are "automobile drugs." Nothing to do with medicine

Technical explanation: Various additives in lubricating oil are formulated according to a certain ratio. Artificially adding certain additives may improve the performance in this area, but the performance in other aspects will decrease accordingly. Only when the engine is in a poor working condition and the overhaul is not worthwhile (for example, it is approaching the end of life), additives can be used for temporary maintenance.

Question 4: After the mineral oil used in my car was changed for synthetic oil, how was the oil changed so dirty?

Metaphorical explanation: Eat the belly of pickle pickle, occasionally come to order seafood, but also back to belly!

Technical explanation: Synthetic lubricants have higher cleaning performance than mineral oils because they remove all previously accumulated dirt. After several synthetic lubricants, this situation naturally disappears.

Question 5: What is good for replacing oil?

Metaphorical explanation: It is certainly not the same as the physical quality of people who have long eaten with pickled vegetables for many years.

Technical explanation: Lubricants are not good or bad, but there is a difference in performance. The use of high-grade lubricants makes the engine work in a better environment for a long time, which is of great benefit for extending the service life of the engine.

Question 6: After the last oil change, my car didn't open much. When the time limit for changing the oil was changed, did you need to change the oil?

Metaphorical explanation: After you finish lunch, you sleep for one afternoon. When you have dinner, do you have to eat?

Technical explanation: After the lubricant is opened in the package and added to the engine, even if the engine is not working, the performance of the lubricant will be reduced due to oxidation and other reasons. Therefore, the "Driver Manual" generally states: "It is recommended to change the lubricant every X thousand kilometers or every X months, whichever comes first."

Question 7: What is the brand of lubricants?

Metaphorical explanation: Food packaging will indicate the proportion of various ingredients, food brand is the credibility of this component ratio.

Technical explanation: At least two API and SAE indicators will be marked on the packaging of general lubricants. The brand of lubricants is the credibility of these technical indicators. In general, the same index of lubricating oil, the use of the engine should be the same effect. For well-known brands, customers will be more confident in the indicators that the manufacturers indicate.