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How to choose the right oil for your car
How to choose oils based on viscosity and performance.
C1 – Beginning you should always refer to the original catalog of the car and it will be determined:
A- The type of oil required from a specific company.
B- The type of oil required and the value of viscosity and the level of technical performance required for oil are specified.
C2- The vast majority find sae (5W/30), SAE (10W/40) or SAE (20W/50).
These three figures cover approximately 75% of the oils required for multi-grade oils.
The small number in the oil, such as SAE 5W/30.
W meansWinter —- its significance is winter or cold weather.
5 Means oil for his weak wife that can reach the wife of oil in the mobilebard as if it were 5
General number: 30 in the normal and hot atmosphere for his wife 30 and is suitable for engine design.
C3- The oil is light and is given a very special type of polymers that do not work or do not expand in cold weather conditions, and when exposed to medium or high heat begins to expand to increase the viscosity of oil and in general is well resistant to high temperatures.
So the multi-grade oil is designed to work in all atmospheres.
C4- There is no degree of viscosity suitable for the temperature of the atmosphere at all, but there is an art catalog that defines this relationship to make the appropriate technical recommendation
C5 – There is an current schedule of the relationship between oil wives and different temperatures and the relationship between different viscosities such as: – SAE 10W-30 / SAE 10W-40 / SAE 10W-50 / SAE 20W-50.
Against temperatures from -20 m to 50 m.
C6- According to the evaluation of your motor and the choice of the appropriate viscosity the 50 oil will be given greater protection for the parts of the engine, especially in the high load on the motor, especially the heat load.
The 30 oil will also provide engine protection, but it will save on gasoline consumption.
C7 – Engine oils differ from each other in the following:
A- Engine oil = base oil + additives.
B- Basic oil: – # Metal oil. / # Synthesized oil.
C- Metal oil:
# Group #1 – contains waxy substances and a percentage of essential oils that reduce the efficiency of essential oil.
# Group #2 : – Oils #1 after it was hydrogenated which removed all unwanted substances which increased the strength and cohesion of the oil in front of the heat.
# Group 3: – Several purification and refining operations were carried out, the results of which were that the essential oils of this group bear high heat and low temperature.
D- Synthetic oils: Laboratory-manufactured oils to withstand all difficult operating conditions, providing the engine with high protection when used.
E- Additions: The additions achieve the required level of technical performance and the higher the level of performance, the higher the alphabet for the next order.
In other words, CI-4 oil is higher than CH-4 oil like this.
Ch-4 oil is higher than CG-4 oil.
CG-4 oil is higher than CF-4 oil.
C8 – American Petroleum Institute: – It is dedicated to determining the required service code that indicates the quality of oil and engine oils two types to indicate them such as:
(C)— Denotes diesel engine oil:
# Commercial Commercial
Or compression compression
(S) — Indicating gasoline engine oils:
# Angel Saloon Salon
Or Spark Spark.
Example: – Oil written on it API SJ/CF
This oil is its level (SJ) for gasoline engines and cf level (for diesel engines) and the higher the alphabetical character the higher the level of performance of its oil.
C9- Indicates the Association of European Automobile Manufacturers
(Associations constructeurs Europeans Automobiles)
And it works with completely different codes from the API code, which is like the following:
The letter A cars gasoline.
B letter small diesel cars.
The C letter is the small gasoline and diesel cars that have the environment can.
The letter "E" is a large diesel car with comprehensive use.
C10 – This is really what matters to us and we put the following as indications of it:
A1 = Oil is provided in gasoline and must be changed after a maximum of 2000-3000 km.
A3 = This oil is a laborious service and can be used for long periods and consume higher gasoline.
A5 = This oil is a laborious service and saves in gasoline consumption.
C11 – Of course it is possible to operate with oils available from oil marketing companies for all types of cars taking into account that companies such as Mercedes and Toyota manufacture their own oils and commit their customers to use it and this is a commercial item of its own.
C12 – After all that has been mentioned in the past, it remains that the oil is certified by the car manufacturer and batali there is reassurance that the oil meets the requirements of its technical specification and can be investigated when matching oil performance levels with the global demand of car companies.
C13 – Metal oil:
it comes from the oil extracted from the ground and the reason for the label because it was
Extracted in a mining, drilling or prospecting manner to extract a particular substance.
Synthetic oil:
It is abnormal oil that has been synthesized or produced in the laboratory (under certain circumstances) as a result of the oil shifting to another stronger substance due to pressures
thermal that he was exposed to.
C14 – Types of synthetic oils:
1- 100% synthesis type of non-metallic oils (chemicals) development is carried out
It has the likes of esters and accounts for about 10% of the market's need.
2- A type manufactured in a way that makes it up of mineral oils and this is in the form of most oils
Market clearance (70%).
3- Semi-synthesis type is a mixture of metal oils and non-metallic oils
Mineral oils do not exceed 30%.
C15. Essential oils are classified into 5 sets of statement as follows:
(Group 1) (1Group ):
– Mineral oil extracted from petroleum in refining solvent.
– The resulting oil has a high percentage of colored impurities in addition to the amount of wax.
– The API specification specified the group specifications as follows:
Prevalence < 90%
نسبة الكبريت > rate 0.03%
Viscosity coefficient of 80-120
Saturation is the extent to which the carbon chain of the oil compound is saturated with hydrogen and viscosity factor is a calculated number that shows the relationship between the viscosity of the oil and its stability or change as the temperature changes and the higher the figure, the firmer the viscosity of the oil.
Example of this collection: Shell Helix HX3 Oil (Red Shell 3000 km)
(Group 2) (Group 2)
- Mineral oil extracted from petroleum, repeated and relatively treated in a manner (Hydro-Cracking).
Group 2 oils perform better than Group 1 and have greater resistance to oxidation because their saturation is high and purer in color.
This group 2 is required of companies ' product of oils and greases more than group 1
- The API defined its specifications as follows:
Saturation rate > 90%
sulfur content < 0.03%
معامل اللزوجة من 80 إلى 120
(مثال لهذه المجموعة) زيت شل هيليكس HX5 ( شل الأصفر ) 5000 كم .
(Group 3) ( Group 3 ):
- Mineral oil extracted from petroleum and processed 100% by way of breaking the hydrogen chain. (Hydro- Cracking).
Most of the oils in this group have mild viscosity degrees because their particles have become smaller as a result of hydro-Cracking.
So you'll find that all oil wives start with OW or SW.
- You will find that the manufacturing process has improved the properties of this group of oils and therefore many oil companies consider it synthetic oil (high oxidation resistance and very pure color)
- The API defined its specifications as follows:
- Saturation rate > 90%
- sulfur content < 0.03%
- Viscosity factor > 120
(Example of this collection): Oil such as Helix Ultra 10,000 km).
(Group 4) ( Group 4 )
-
- Poly Alpha Olefin blended oils and shortcuts (PAO).
- Poly Ava Olive is basically a type of plastic, processed in petrochemical companies and when used it performs excellently and has a very long life compared to previous groups, and due to the need to use a dissolved substance (such as one of the ester compounds) to dissolve additives and is added to the basic synthetic oil PAO.
- Highly viscous engine oils such as 10W60 or very light oils such as OW-20 can be manufactured.
Example of this collection: Mobil 1
(Group 5) ( GROUP 5 ):
- Essential oils not mentioned in the previous four groups
- Its applications are in mechanical machines such as vitesse and industrial transmission kits.
Example of this collection: Gulf Oils For Group 5.
C16- Oil companies consider the group (3) to be synthesized and their efficiency is close to the performance of the Group 4 and Group 5, which is cheaper.
- Oils called 100% synthetic such as group 4 and group 5
- So the name has been updated on the Group 3 and its name has become oils manufactured with Synthetic Technology.
Or hydrocracked synthesis
Summary:
- 5.4 total synthetic oils and last for very long periods of more than 20 thousand kilometers and two years of use
- The Group 3 oils, which are called synthetic, are not, but are metal oils manufactured with synthetic technology, they do not last in the engine more than 10,000 kilometers.
C 17 – Age of the car
Egypt Phoenix Oil 5w 40 0-2 year
Egypt Phoenix Oil 5w 40 2-4 year
Egypt Oil 1 5-9 year
Egypt Oil 1 10-15 year
Or Egypt Oil Super 10000
Egypt Oil Super 7500 +15 year
C18 – The advantages are:
- Easy flow of oil in the engine when cold operation.
- Maintain the level of viscosity at high or low temperatures.
- Help reach peak engine operating performance more quickly than mineral oils.
- Low oil evaporation.
- The possibility of using the same oil for a longer period.
- Reduced friction, which means a decrease in fuel consumption.
- The consistency on the surface when the engine is turned off is greater than mineral oils, providing protection for the surfaces that have friction when running again.
C19- Metal oil is oil extracted from oil after refining with simple additives
It is the oil used for long periods
Synthetic oil is an oil that has been modified chemical composition in the factor to have different physical and chemical properties than metal oil.
As for the oil that is like this, it is a mixture between synthetic oil and metal oil with a known percentage
Technical commentary
– Synthetic oil enjoys chemical and physical stability better than metal oil:
1- Does not decompose or lose his wife quickly even in temperatures up to 240 m
2- Saves fuel consumption because it helps to move engine parts more easily and reduces friction to the maximum.
3- Maintaining friction-prone engine parts when managing the car early in the morning in low temperatures or after a long break
4- Do not form grease particles inside the engine that caused the clogged balof and hindered the flow and flow of oil for all parts of the engine
5- It has a great ability to clean the engine from combustion outputs
C20- Cleaning of the engine's oil cycle is done through specialized chemicals available on the market and metal oil and filtering are changed and the engine is filled with synthetic oil
An important note.
With the performance of the synthetic oil varying from a pint to a full liter in the first 500km and the shortage must be supplied and will not be repeated afterwards and the synthetic oil will be measured every two weeks and the oil filter changes every time the oil is changed and make sure that there is no regular leakage of engine oil.
C21. Synthetic oil should not be used in old engines because it weakens the engine's capacity and reduces motor pistons because the old engine on the internal parts deposits and when the synthetic oil changes, it removes these deposits, which increases the amount of clearance of the engine's income parts and leads to the smuggling of engine pistons.
C22- The main rule is to choose through the car catalog and to identify the required oil there are two basic rules:
1- Viscosity: It is recognized from sae number and this is an abbreviation for the Association of Automotive Engineers in America and its mission is to determine the wife of oil
– There are numbers the more they value, the more viscosity increases:
Light numbers 20/15/10/5/0
Figures for heavy oil60/50/40/30
Multi-grade oils are not a mixture of light and heavy oils, but light oil with special additions of polymers, which are called viscosity factor enhancers.
And what happens is the fact that the oil retains its viscosity and increases the size of the island with high temperatures so the engine is safe in low temperatures i.e. the management of the engine in the morning and in high temperatures shows the benefit of polymers by keeping a light layer on the parts that move to maintain them
2- Performance level/recognized through API
And this is the American Petroleum Institute, and it has its own symbols, such as
– S Gasoline Engines -C Diesel Engines
SF Gasoline – SG Gasoline And the higher the alphabetical character rises up with it the level of performance
CF-4/CG-4 diesel and therefore CG-4 is higher than CF-4 in performance level
C23- The defects boil down to the following:
– The engine must be powered by lead-free gasoline such as:
Gasoline 92 and gasoline only 95
– Not preferred in some types of engines such as:
– Cars that operate continuously such as taxis and microbuses where there will be no big difference between it and metal oil because the most important item is engine management
The benefit of synthetic oil is to operate safely.
– If the car has an engine that causes a shortage of oil and is always required
Complete the necessary amount of oil for operation and should not use
Synthetic oil.
C24.1 – Reducing speed leads to fuel consumption
2. Periodic maintenance
3. Less brake and fuel consumption
4- Weight loss
5- Maintaining the filling of tires according to technical recommendations
6. Continuous change of combustion candles
7. Air conditioner*economic use*
8- Do not press instead of fuel
9- Do not burn speeds*tightening on spares or drag on speeds
Different for the boy until the engine's sound is very general.
10. The need to close windows at medium and high speeds as the air through which the car rushes generates friction consumes fuel
C25- It means that the additives added to the basic double-performance oil cover
Two types of cars are:
1. Gasoline engines that need SJ performance level
2. The same oil can be used in diesel engines that need a performance level
CF
C26.1. Power transfer through hydraulic system
2. Oil metal parts
3- Cooling the components of the whole hydraulic system
4. Acting as a governing substance that prevents pollutants and dust from entering the system
C27- Do not get rid of the air in the hydraulic group (during the change of oil).
- The presence of a leak leads to a decrease in the level of oil in the tank, which increases the amount of air in the tank.
- Use a quantity at a higher rate of behavior than the designer of the group.
- Do not get rid of the old oil when the oil changes.
- Pollution of oil with water.
- The use of low-power oil in the separation of water or air.
C28.
- Leaks in the cooling cycle.
- Leaks in the oil cycle.
- Leaks in the fuel cycle.
- Ignition problems needed to operate the engine.
- Problems in the electricity departments.
C29- * Lack of capacity is for the following reasons:
- Malfunction in the fuel tow system.
- Reduced compression.
- Engine oil in the cartier is too heavy.
- The timing of the engine ignition is incorrect.
* The engine consumes a lot of oil:-
1- The oil is light and the rings and pistons are consumed.
2- Consumption of valve guide
3- Bad state of oil leakage blocker around the valves.
C30- Weak oil – oil pump consumed – little engine oil – softness of connections or leakage in oil contraindications – partial payment in the oil cycle.