What should I know about Lubricants
Agan-agan must have known, about the lubricant, because, at least once a month would replace the lubricant. There are so many brands of oil existing in the market, ranging from local brands, and international. And all these brands, have in common. Pas oil change, definitely choose the specifications of oil (SAE / API Service) considered fit for the vehicle. But it turns out, it is not just oil SAE, there are a lot of things to note from a liquid called oil.
Well, I want to discuss the first concerning the function of lubricants:
Spoiler for the function of lubricants:
1. Lubricate: Melepasmu, his name jg lubricant, surely its main function to lubricate the engine surfaces, so as not to dry.
2. Protect: the machine needs to be protected jg lho, protected from all negative effects caused by the machine reply.
3. Refrigerate: friction between the surface of the machine in addition cooled by the radiator, cooled by the lubricating jg aids.
4. Insulate: Why have sealed between the metal surface? In order not to directly rub against and wear.
5. Clean: Results of combustion in the engine, leaving a dirt lot, ranging from carbon to flake. If it stays inside the machine, it will interfere with the performance, therefore, need to be cleaned.
Five functions above, the absolute must-have by lubricants. That is why we must change the oil regularly, because over time, one of the last function can be reduced. In addition, jg to throw sampah2 happened during the combustion process.
After knowing the function of lubricant, Agan'll often hear the term synthetic oils, and semi-synthetic. It is oil-based classification of the constituent materials.
Spoiler for compilers:
1. Minerals: made from refined petroleum
2. Synthetic: synthesized in the industrial / laboratory
3. Semi Sint: a mixture of both
Then, if agan2 clay, in packing grease that was certainly no number listed, the most common is XW - X, with X is a number. It is known as SAE (Society of Automotive Engineer). The purpose of these figures is the scale of the viscosity (thickness) of these lubricants. The letter W, show Winter, so the first digit means the scale of the oil viscosity at cold temperatures, and number two is the scale which viscosity at hot temperatures.
Spoiler for Example SAE:
10W-40: In cold conditions, the viscosity at the scale of 10, and the hot temperature, viscosity at 40 scale
0W-30: In cold conditions, the viscosity at the scale 0, and the hot temperature, viscosity at 30 scale
Well, in terms of SAE, the oil can be divided into two types
1. Multigrade Oil: Having two types viskositi in different conditions
2. Oli monograde: Only have one type viskositi, owned by the lubricant to axle, gear, etc..
Why should Multigrade oil for engine? Because my machine has two kinds of conditions, namely cold, and heat. The nature of metal, he will expand when hot and when cold, will shrink. Imagine it, kl oil when cold or hot, consistency just wrote? The machine will quickly wear out and damaged.
In the selection of SAE, should refer to the manual. Not until, we choose the oil, which was different from the specifications recommended by the manufacturer, will actually feel sorry for the engine. This most often I have seen, motorists who choose not appropriate SAE, and so no complaints, which blamed the oil
Effects most often seen, which included kl oil is thicker than the recommendation, the engine will feel heavier. But if oil which included more dilute, the engine will ngempos / less energy (term is: blow-by)
So, do not malas2 yes, read the manual
If such manuals already lost, actually there are simple instructions. The younger the age of the car, it is necessary to dilute the oil reply.
After learning about the SAE, there is a distinguished name longer term API Service. This API stands for American Petroleum Institute. So, kl earlier SAE specifications required by automotive manufacturers, the API Service kl is determined by the oil manufacturer.
Service API is marked dg two letters. Diesel engines, the fire started with the letter C (Compression), and for gasoline engine starts dg letter S (Spark). This was followed dg letter alphabet, the higher, the more recent. So, like the fire BC, it has been tested dg newer engine than the API SL.
Actually there are many in addition to SAE and API, like JASO, ACEA, and so on., Only the most frequently used are the two earlier.
The most common question is, can not you think, the oil used for motor cars, and vice versa?
To answer this, you can just check the condition of car and motorcycle engines. In motors, engines, and gear it to one, while in a separate car. Thus, motor oil is designed not only to secure the machines, jg to secure gear. Meanwhile, car oil just to lubricate the engine alone. So, better to use appropriate specifications, anyway, the price is not much different from his
Oh yes, one more thing. Very often people ask, is it okay to add the additive in the lubricant?
The history of the creation of the additive itself, because it was not yet advanced lubricant technology, so that created additives. There are many types of additives, ranging from the antiwear, anti-oxidant, anti-foam, etc.. Now, with advances in technology, the additive is directly added to the lubricant. To my knowledge, associated with it, oil producers do not recommend adding more oil.
