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SAE 50 engine oil is a type of high viscosity motor oil that is commonly used in older, high-mileage engines, particularly those in heavy-duty vehicles such as trucks and tractors. It is also commonly used in some classic and vintage cars.
SAE stands for Society of Automotive Engineers, and the number 50 refers to the viscosity grade of the oil. Viscosity is a measure of an oil's resistance to flow, and higher viscosity oils like SAE 50 are thicker and less likely to leak or burn off than lower viscosity oils.
Since SAE 50 oil is thicker than many other grades of oil, it can provide better protection against engine wear and tear. It is also less likely to break down under high temperatures, making it a good choice for engines that run hot.
However, SAE 50 oil is not suitable for use in all types of engines. For example, it may be too thick for modern engines with tighter tolerances, which require lower viscosity oils to function properly. Additionally, SAE 50 oil is not recommended for use in extremely cold temperatures, as it can become too thick to flow properly.
Overall, if you have an older, high-mileage engine or a heavy-duty vehicle that requires high viscosity oil, SAE 50 may be a good choice for your needs. However, it's always important to consult your owner's manual and follow the manufacturer's recommendations when choosing an engine oil.
Petroleum bitumens are solid and semi-solid bitumens that are obtained directly from the distillation of crude oil or by other additional operations such as air blowing. Oil bitumen is the residue or heavy residue of crude oil distillation. The amount of bitumen in crude oil varies from zero to more than half of it. In addition, bitumens obtained from different sources can have many differences.
The important use of bitumen is due to the existence of two important properties of this material, being impermeable to water and high adhesion. According to these properties, the main use of bitumen is in road construction and insulation.
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BASE OIL SN 100-150-300-500-600-700
Base oil is a type of oil which is used as a base for lubricants. The main element of lubricants (volume wise) is base oil and it forms about 95% of lubricants weight. In some lubricants (Compressor and hydraulic oil) 99% of the oil is consisted of base oil and only the 1% which is left contains additives. Base oils can be reached from oil based and non-oil based resources. Most of the base oils used in the world are obtained from crude oil refining. Most of the compounds which form base oils are Paraphinic, Naphthenic and aromatic compounds.
Base oils chemical properties and their impact on the usage of final lubricant:
1 volatility: reduction of the oil, oil thickening, sediments
2 surface activity: foaming, pressure tolerance, air release, emulsion expansion
3 oxidations: sediments, oil thickening, metal oxidation, mud forming
4 Viscosity: Fluidity in lower degrees, energy waste, abrasion protection, proper cooling
5 being soluble: Motor neatness, sealant compatibility, process applications, formulation sustainability The base oil which is extracted from crude oil is called mineral base oil which is categorized in two types (Paraphinic and Naphtshic). Paraphinic oils are consisted of normal hydrocarbons and Iso hydrocarbons. Naphthic oils are consisted of annular full hydrocarbons. Paraphinic oils have certain attributes in comparison with naphthic oils such as;
More shedding temperature
Less special weight
More viscosity indicators
Less solubility property
Higher resistance against oxidation
Higher flash point
Mainly naphthic oils are needed for less temperature criteria and pour point specially; hydraulic oils, coolers, rubber producing oils, metalworking and cylinders lubricants for big motors and greases.
Rasha Motor oil 5W 40 API SN full synthetic engine oil is the ultimate in protection and performance. This premium quality engine oil is formulated a complex blend of synthetic base oils and chemical additives designed to protect the engine and enhance its performance under extreme operating conditions such as high temperature motorway driving or low temperature stop and go driving.
Rasha Motor oil� 5W 40 API SN full synthetic engine oil is the ultimate in protection and performance. This premium quality engine oil is formulated a complex blend of� synthetic� base oils and chemical additives designed to protect the engine and enhance its performance under extreme operating conditions such as high temperature motorway driving or low temperature stop and go driving.
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This oil is designed for use in high-speed four-stroke cycle diesel engines and Tier 4 non-road exhaust emission standards as well as for previous model year diesel engines.SAE 5 W 40 API SN RASHA Motor Oil Full synthetic engine oil, low friction type that reduces fuel consumption. Recommended for 4-stroke engines, petrol or diesel, which is used in in extreme cold and in warmer climates.
This motor oil is especially effective at sustaining emission control system durability where particulate filters and other advanced after treatment systems are used. RASHA Motor oil Heavy-Duty SAE 5W-40 Full Synthetic API SN provide enhanced protection against oil oxidation, viscosity loss due to shear, and oil aeration as well as protection against catalyst poisoning, particulate filter blocking, engine wear, piston deposits, degradation of low- and high-temperature properties, and soot-related viscosity increase.
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White Spirit (solvent� 402� ) is a mixture of aliphatic and alicyclic C7 to C12 hydrocarbons with a distillation range of 142 - 200 C and boiling point 105 to 205 C. White spirit is a petroleum-derived clear liquid used as a common organic solvent in painting and decorating. This solvent is clear liquids, and water-colored and have a mild odor, are chemically stable and not corrosive. solvent 402 is used as an extraction solvent, as a cleaning solvent, as a degreasing solvent and as a solvent in aerosols, paints, wood preservatives, lacquers, varnishes, and asphalt products.
-solvent 402 in paint industry is the most widely used as diluent and drainer.
-solvent 402 in home is commonly used to clean paint brushes after use, to clean auto parts and tools, as a starter fluid for charcoal grills, to remove adhesive residue from non-porous surfaces, and many other common tasks.
Types and grades of solvent 402:
Three different types and three different grades of solvent 402 exist. The type refers to whether the solvent has been subjected to hydrodesulfurization (removal of sulfur) alone (type 1), solvent extraction (type 2) or hydrogenation (type 3).
Each type comprises three different grades: low flash grade, regular grade, and high flash grade. The grade is determined by the crude oil used as the starting material and the conditions of distillation.
In addition there is type 0, which is defined as distillation fraction with no further treatment, consisting predominantly of saturated C9 to C12 hydrocarbons with a boiling range of 140 200 C.
Oil 10W-40
SAE 10W-40 RASHA Motor Oil API SN Semi Synthetic is formulated from high-quality synthetic base oils combined with modern performance additives to help provide long engine life and protect critical engine parts from lubricant related failures for your vehicleâ??s OEM recommended oil change interval in mileage or in time of use whichever is longer.
SAE 10W 40 is recommended for gasoline fueled automobiles and light duty trucks where a higher viscosity API SN. Semi Syn 10W 40 API SN RASHA Motor Oil is a premium quality engine oil boosted with synthetic base oils to provide increased engine protection through increased oxidation resistance. It is suitable for most types of petrol, diesel, and LPG four-stroke engines under both severe and varied operating conditions. It is ideal for use in the professional workshop.
Semi Synthetic SAE 10W 40
Engine cleanliness is also promoted by the increased level of dispersants in Semi Syn 10W 40 SN. The special additives inhibit the formation of sludge especially under the constant cold temperature operation of urban motoring.
RASHA Motor Oil Semi Synthetic 10W 40 API SN is excellent for cold starting as it has good fluidity characteristics, and provides increased engine life as the wear rates for both cams and bearings are decreased compared to less advanced oils.
The high-temperature performance of Semi Syn 10 W 40 SN is also enhanced by the selection of more the thermally stable Group III base oils, oxidation inhibitors, viscosity improvers and detergents.
Feature & Benefits
-Improved oxidation resistance.
-Protection from piston deposits.
-Better wear protection.
-Fast flow at cold temperature start-up.
-Protection at high temperatures
oil 20W-50
SAE 20 W 50 API SL semi synthetic RASHA Motor Oil are premium high-performance multi-grade engine oils formulated from high quality synthetic base oils combined with top quality performance additives to help provide long engine life and protect critical engine parts and providing wide temperature range engine protection.
A trusted name in automotive oils based on revolutionary concepts meeting the performance levels required by todays gasoline engines. SAE 20W-50 API SL Provides good cold starting, high resistance to sludge, low volatility characteristics and low oil consumption
SAE 20 W 50 RASHA Motor Oil is high viscosity oil that provides a cushioning and protection against metal contact and more effective sealant that extend engine life.
SAE 20W-50 API SL Semi Synthetic RASHA Motor oil is recommended for gasoline vehicles of every type , turbo charged or naturally aspirated which require API SL quality oil.
It exceeds the performance requirements of most car manufactures.
It is suitable for 4-stroke motorcycle engines.
 Feature & Benefits
-Super High Performance engine oil for protection and performance
-Neutralises the waste products from fuel combustionÂ
-prevent the formation of sludge
-Provides a protective film on engine part in all conditions
-Reduces engine wear during start-up and warm-up.
-Improved engine cleanliness, promoting longer engine life.
-Excellent wet clutch friction stability even in severe applications.
-Enhanced gear wear protection for transmission gears.
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Light hydrocarbons can be used as a basic material in the chemical and petrochemical industries as feed in the production of various petrochemical products, including solvents and diluents.
Among the various uses of hydrocarbons
In the production of lubricants, solvents, industrial chemicals, explosives, raw materials of all kinds of paints and thinners, types of plastics, rubbers, synthetic fibers and industrial alcohol, production of liquefied gas and kerosene (for heating and domestic use), production of polishes and Varnishes and... are used.
And also one of the most widely used hydrocarbon uses, lighter and more valuable hydrocarbons can be converted into high octane gasoline and other petroleum fuels (jet fuel) using catalytic processes.
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Gas oil or diesel is used as a fuel for diesel engines and thermal installations. The range of its hydrocarbons is 250 degrees Celsius. Gas oil mainly consists of three groups - with a boiling point range of 385 C and even 25 C-14 C between 20 54 and a maximum pour point of 0 �?�°C, paraffinic, naphthenic and aromatic, and has a minimum ignition point of -820. Its most important characteristic is 860 kg/m 15.6 equal to 3 �?�°C. Its density is at room temperature, which should be more than 50 for the engine to work smoothly and quietly. Cetane number is a measure to show the delay time of fuel combustion in engines. This number shows the delay time between the start of injection into the combustion chamber and the start of fuel combustion. During this time delay, the fuel accumulates and then ignites, and this combustion takes place in the form of an explosion in order to produce a power stroke. The shorter the delay time, the more uniform the ignition. The minimum cetane number for oil and gas should be 50. The amount of cetane number depends on the process from which oil and gas are produced. Oil and gas production have a high cetane number and their combustion quality is very good.
