How to choose engine oil and do not screw up the engine

Olga Nagornyuk
16.08.2016

How to choose engine oil and not to screw up the engine?

On how well you choose the oil for the engine, depend on its resource and safety of operation. Motorists, first faced with the need to replace it, are interested in whether it is possible to mix motor oils of different brands, which lubricant is optimal and with what regularity you need to make a replacement. You will find answers to these questions in our article.

Engine Oil Classification

The engine oil is multifunctional: it not only reduces the degree of wear of moving parts, but also cools the pistons and crankshaft bearings, protects the engine from corrosion, and prevents the appearance of carbon that prevents the pistons from working.

Work details

Engine oil is a combination of an oil base and various additives that improve its lubricating properties, stabilizing viscosity and cleans the engine from the appearance of soot.

Depending on the substance that served as the basis, engine oil is divided into:

  • mineral produced as a result of refining petroleum products.It has an attractive price, but low performance: it becomes thicker in the cold and too liquid in the heat;
  • synthetic, resulting from chemical reactions. Such an oil for an engine is 2-3 times more expensive than mineral oil, but it also serves for a long time - it is designed for 20 thousand km of run, and some brands - up to 80 thousand km;
  • partially synthetic (semi-synthetic, semi-synthetic), resulting from the mixing of the first two types. Compromise option, with a more affordable price and good performance.

Engine oil marking

Motor oils are also classified by viscosity grade - this is the so-called SAE classification. It reflects the maximum temperature conditions at which this oil is able to ensure the normal operation of the engine.

The viscosity level has an alphanumeric designation, for example, SAE 5W-40, where:

  • the letter W means the word winter (English “winter”), i.e. this type of lubricant is recommended for use in winter conditions;
  • the number preceding the letter W denotes the viscosity level in winter conditions;
  • the number following the letter W is the marking of the degree of viscosity at high temperatures.

Orient yourself, in what temperature range is it possible to use thisengine oil,The following table will help:

Engine oil temperature chart

The third parameter that formed the basis of the classification is the additives that affect the quality characteristics of the lubricant. Their presence reflects the classification of the API, which determines what type of engine lubrication is designed for:

  • S - on gasoline;
  • C - on diesel;
  • both letters - on both types of engines.

Which oil to choose?

The best option would be a lubricant, which is listed in the instruction manual. Automakers conduct engine tests using different brands of oils and determine those that provide the least wear parts and the best resource.

If you do not have the opportunity to choose the option recommended by the automaker, be guided by the brand and viscosity indicators. It is better to fill in greases of the same brand, since they contain the same additives. Attempting to mix engine oil from different manufacturers can result in a chemical reaction of the substances contained in the additives and a decrease in lubricant performance.

The following table will help determine the choice of oil by viscosity level:

Engine oil selection

General replacement guidelines

Read also:

And finally, some tips on changing the oil.If the former owner can not say what brand of lubricant has been filled in, be sure to make a complete replacement of oil and the oil filter from the engine washing. When selecting follow rule: the more mileage, the higher the viscosity of the oil used.

Frequency of replacement of the lubricant in the automaker captures the instruction manual. This is usually done every 5-8 thousand kilometers. But when driving at low speeds, this period may increase to 10 thousand km.

Usually experienced drivers determine the need for replacement in the following way. Using probe grease sample is taken (the motor must be cooled down) and triturated between the fingers. If the substance has a light color and solid particles are not felt when rubbing it, the replacement can be postponed. If the engine oil is dark, very viscous and non-uniform, you should change it.

About,how to change the engine oil yourselfSee video:


Take it to yourself, tell your friends!
Read also on our website:
The advantages of the compact hatchback Datsun mi-DO
In 2013, the management of Nissan decided to revive the brand Datsun belonging to it and launch a new line of cars into production.
Where is it profitable to buy a car?
Choosing a vehicle is not an easy task for a car enthusiast. This is due to the considerable cost of most models and the need to design a package of papers.
New Jeep Wrangler Unlimited: The Car of the Future Now
For four generations of the legendary SUV manufacturers have presented serious lovers. New Jeep Wrangler Unlimited has been manufactured at the site of the Chrysler concern since 1987. The SUV is difficult to attribute to the category of popular cars, rather it is an exclusive model range, designed for a specific narrow audience. First of all, this situation is explained by the level of value.
Is it worth taking a loan secured by TCP
Almost every car pawnshop gives cash loans secured by TCP. Managers of these companies, advising clients, argue that this service is very convenient, because it allows you to receive the necessary amount of money without transferring the vehicle to storage in the pawnshop.
show more
FARMING - fast, comfortable and inexpensive
In all countries of the world, a car rental service with or without a driver is quite popular and in demand. This is due to the fact that a lot of people are very accustomed to precisely this kind of movement. This is most comfortable for many reasons.
Ford Mondeo 4: we understand the shortcomings
The car belongs to the class D and has a history since 1992. Now the concern is already releasing the 5th generation, but the four, which began to be mass-produced in 2007, still remains relevant for many motorists.
Unique cars that never went into production
Before getting on the conveyor, the car goes a long way from the concept car to the production model. However, such concept cars will be presented in dozens a year, and only a few get the opportunity to be released. The most interesting models of cars, which we did not wait, are presented in this article.
Where is the most profitable to buy spare parts for foreign cars
Eternal cars do not exist. Even a new machine of foreign production after active use begins to break.Spare parts for foreign cars - it's not cheap, but here you can save. How - we will tell you now.
Which places are the safest for different types of transport?
Using public transport, personal cars or taxis, traveling by train or plane, you always put yourself at risk of becoming a victim of a transport disaster. But with a mind, a chosen footprint can one day save your life! What experts say about safe places in transport - read on.
How to choose a good driving instructor
What are the criteria to determine the professional level of the auto-instructor and what questions should a potential driver-mentor ask? If your goal is not just to learn to drive a car, but to manage it qualitatively and confidently - our advice is for you.
How to choose summer tires for cars?
As soon as you were convinced that the spring fully entered its rights, the weather improved and there was no more snow with ice, you can safely send your car for tire service and change tires for the summer one. But which one? How to choose summer tires correctly - we tell in detail in this article.
4 easy ways to start the car in the winter, if the battery is dead
Perhaps every driver has come across such an annoying phenomenon as a discharged car battery - most often this trouble happens during the winter frosts. But there are no hopeless situations: we have prepared for you several available ways of how to start the car if the battery has sat down.

Related news

  • Sleep
  • What and how to collect tips for beginners
  • Materials for nail and their design
  • Filming the movie The most charming and attractive brought the director to a heart attack
  • Telephony and communication

  • How to choose engine oil and do not screw up the engine

    How to choose engine oil and do not screw up the engine

    How to choose engine oil and do not screw up the engine

    How to choose engine oil and do not screw up the engine

    How to choose engine oil and do not screw up the engine

    How to choose engine oil and do not screw up the engine

    How to choose engine oil and do not screw up the engine

    How to choose engine oil and do not screw up the engine

    How to choose engine oil and do not screw up the engine

    How to choose engine oil and do not screw up the engine

    How to choose engine oil and do not screw up the engine

    How to choose engine oil and do not screw up the engine

    How to choose engine oil and do not screw up the engine

    How to choose engine oil and do not screw up the engine

    How to choose engine oil and do not screw up the engine

    How to choose engine oil and do not screw up the engine

    How to choose engine oil and do not screw up the engine

    How to choose engine oil and do not screw up the engine

    How to choose engine oil and do not screw up the engine

    How to choose engine oil and do not screw up the engine

    How to choose engine oil and do not screw up the engine

    How to choose engine oil and do not screw up the engine

    How to choose engine oil and do not screw up the engine

    How to choose engine oil and do not screw up the engine

    How to choose engine oil and do not screw up the engine

    How to choose engine oil and do not screw up the engine

    How to choose engine oil and do not screw up the engine

    How to choose engine oil and do not screw up the engine