Do you have to change the oil when it turns black? Actually not necessarily need
Do you have to change the oil when it turns black?
Always go to the maintenance, but there is a delay in changing the oil? Regardless of the industry, is it the easiest to slaughter? You often do maintenance in the same store. If you say something, what do you believe, don't doubt, who won't hang you? Maintenance of this kind of thing, or change the land often ~ trouble is really troublesome, but better than being slaughtered! I would rather have trouble, and I am reluctant to send the money out.
Automotive lubricants are used at very high frequency during maintenance. In addition to protecting the engine and reducing the number of oil changes, high-quality lubricants also save on gasoline costs. However, if the lubricant is used improperly, it will cause the car to malfunction! Since the landlord asked today, let's talk about the four misunderstandings of the general riders on the use of lubricants!
When the lubricant turns black, should it change oil?
The media is the problem encountered by the landlord. Some basin friends think that the black color of the lubricating oil is the realization of the serious deterioration of the oil, so it has to be changed. In fact, this is only for lubricants without static dispersant, but the lubricants used in modern cars are generally added with a quiet decomposer. The conditioner removes the film adhered to the piston and the black carbon deposit and disperses it in the oil, thereby reducing the formation of high-temperature precipitates in the engine, so the color is easily blackened after a period of use of the lubricating oil, but Does not mean that the oil has deteriorated.
The master of the maintenance shop often changed the lubricating oil to the landlord. If he was not professional enough, he did not realize this, or he would like to make a lot of money. Such a "black shop", the landlord still dare to go?
Lubricating oil is often added without replacement?
Just said, it is normal to turn black oil with a clean decomposing agent. You don't have to change it, but you can't always change it! Only supplementing and not replacing can only make up for the shortage of oil quantity, but can not fully compensate the loss of lubricating oil performance.
The landlord should know that during the use of lubricating oil, the quality will be deteriorated due to pollution, oxidation, etc., and there will be some consumption, so that the quantity will be reduced. In order to make the lubricating oil give full play to its performance, use it for a while.
It still needs to be replaced after the interval.
Sometimes additives are used
Some basin friends believe that adding additives to the lubricant can play a better role. Here, you can tell the landlord responsibly, this understanding is wrong! A truly high-quality lubricant is a finished product with a variety of engine protection features. The formula already contains a variety of additives, including anti-wear agents, and the lubricants are most focused on the balance of the formula to ensure the full performance of various properties.
Adding other additives by yourself not only can not bring extra protection to the vehicle, but it is easy to react with the chemical substances in the oil, resulting in poor overall performance of the oil. Isn't this a superfluous addition?
How much more oil can you add?
Some basin friends believe that more lubricants can be added, it seems that if you add less, you will lose money, and you will have to fill up every time. Hey~ Why don't you see it! Tell the landlord that the amount of lubricant should be controlled between the upper and lower scale lines of the dipstick. Because too much lubricating oil will break into the combustion chamber from the gap between the cylinder and the piston to form carbon deposits.
Carbon deposits are not a good thing! These carbon deposits will increase the compression ratio of the engine and increase the tendency to produce knock; the red hot state of the carbon deposit in the cylinder is also likely to cause premature combustion, and if it falls into the cylinder, the wear of the cylinder and the piston will be aggravated, and the lubricating oil will be accelerated.