Substance that is interposed between two moving surfaces, forming a film that significantly reduces the contact between the parts, preventing wear and heat generation.
2. What is mineral base oil?
It is the lubricant whose base comes from the distillation of petroleum, later formulated and transformed through chemical reactions carried out in the laboratory.
3. What is synthetic base oil?
It is a lubricant based on chemical reactions carried out in the laboratory.
4. What is the function of lubricating oil?
Lubricate.
Refrigerate.
Clean and keep components clean.
Protect against corrosion.
Seal the combustion chamber.
5. What is viscosity?
It is the degree of resistance offered by the lubricating oil itself to its own flow. This degree is defined as the resistance that a fluid offers to its own movement. The lower its viscosity, the greater its ability to drain (flow). The viscosity values of the oils are obtained experimentally in the laboratory, using a device called VISCOSíMETER. This is a standardized test that measures the time that a certain amount of fluid takes to flow through a small tube (capillary) at a constant temperature. The test temperature must be constant, as viscosity is a property that changes according to temperature variation. The higher the temperature, the greater the flow capacity; on the contrary, when at low temperatures, the fluid will offer greater resistance to flow due to the increase in its viscosity. Why are there different degrees of viscosity? They exist to meet the various specifications of vehicle and equipment manufacturers.
6. What is a multigrade lubricating oil?
It is a lubricating oil designed to meet various viscosity ranges. This means that at low or high temperatures, the fluidity of the oil is maintained, as well as its lubricating power.
7. Is it better to use an SAE 15W-40 oil or an SAE 40?
It is best to use SAE 15W-40 lubricating oil, as it covers a wide range of viscosities, maintaining lubrication efficiency in various temperature regimes.
8. Why change engine lubricating oil?
As they are used, or over a period of time (time they remain inside the system), the additive elements in the oil deteriorate physically and chemically or become attached to other chemical substances. As a consequence, the lubricant loses its efficiency, increasing the generation of heat and consequently causing wear of the components.
9. When to change the oil?
We advise you to always follow the recommendation in your vehicle's Owner's Manual.
10. What can happen to the engine if the oil continues to be used after the recommended change period?
After the period recommended in the Owner's Manual, the ability to lubricate and protect is greatly reduced, causing excessive wear of components, reducing the useful life of the engine.
11. What problems can excess or lack of oil cause in the engine?
In case of excess, lubricating oil consumption increases, polluting the environment and even affecting the spark plugs that end up being contaminated. In the event of a lack, the lubrication and cooling actions of the lubricating oil are compromised, causing various damages to the engine, and may even melt.
12. What is the correct way to check the oil level?
Park the vehicle on flat ground;
Turn off the engine;
Wait a minimum of 5 minutes before checking the level.
Measure the oil level (dipstick).
The ideal and most correct thing is to check the level in the morning with the engine still cold.
The ideal level should be between the minimum and maximum marks indicated on the dipstick.
13. When should I top up engine oil?
Whenever the oil level is close to or below the minimum mark on the dipstick and it is not time to change it. Normally, the engine consumes a small amount of oil during operation. If replacements become constant and in significant volumes, it is recommended to check for leaks or excessive wear of engine components.
14. Can just replacing the oil and never changing it cause damage to the engine?
Yea! The residues generated by the operation of the engine accumulate, contaminating the lubricating oil, accelerating its wear. When replacement is made with new oil, it is contaminated by the residues already found in the old oil, losing its lubrication and cooling effect, as a consequence, the engine oil filter may have its passages restricted or even become clogged. This decreases circulation and further increases operating temperature. In case of clogging, the engine can even fuse due to lack of lubrication.
15. Can oils from different brands and types be mixed?
It is not recommended to mix lubricating oils of different brands and types, as there may be incompatibility between the additives used in the formulation of the products and thus cause a loss of lubrication efficiency.
16. Should additives be added to the oil?
Not! Lubricating oils are formulated to meet the engine performance requirements determined by their manufacturers. All the necessary additives are already contained in the lubricating oil in the proper proportion and, with the addition of an extra additive, the efficiency of the lubrication and even of the vehicle's engine can be compromised.
17. Why does engine oil turn dark after a while of use?
The engine oil turns dark because the detergent/dispersant additive removes and keeps the carbon residues formed in the engine in suspension. It is also important to clarify that this is a condition that must happen, especially in gasoline and diesel engines. In engines powered exclusively by ethanol, this process takes longer.
18. Through touch, can I know whether or not the oil is in usable condition?
Not! Because the actual condition of the oil can only be determined by analyzing the product in the laboratory.
19. What is SAE rating?
SAE - American Acronym that represents the name of the Institution (Society of Automotive Engineers) Society of Automotive Engineers - Classifies lubricants by viscosity ranges in two scales: a low temperature one (0W, 5W, 15W) where the letter W means Winter ( winter) and another of high temperature (30, 40, 50).
It is also important to know that since its emergence at the beginning of the last century, SAE has determined worldwide standards for automotive lubricant viscosity.
20. What is API classification?
API: American that represents the name of the Institution (American Petroleum Institute) - American Petroleum Institute - Classifies automotive lubricating oils by performance and viscosity, measured at low and high temperatures to determine the working range of the lubricating oil.
“The policy of TEXSA DO BRASIL LTDA is to produce quality lubricants and greases, with high performance, for greater performance, economy and safety, through continuous improvement of its processes”.