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This section provides an overview for engine oil as well as their applications and principles. Also, please take a look at the list of 7 engine oil manufacturers and their company rankings. Here are the top-ranked engine oil companies as of May, 2025: 1.Lubrication Engineers, 2.Mobil, 3.Anti-Seize Technology, A.S.T. Industries, Inc..
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Engaged in research on nitride semiconductor growth using the MBE method at Waseda University Graduate School. After graduating from graduate school in 2016, he joined a non-ferrous metal manufacturer.
Engaged in equipment maintenance and engineering work at metal smelting plants. Moved to a chemical manufacturer in 2022. Engaging in similar tasks.
Engine Oil is oil used to lubricate and cool the engine.
It is used to reduce wear and friction by preventing direct contact between engine parts and to maintain engine performance by providing a cooling effect.
Regular replacement of Engine Oil is very important to ensure that the product in which the engine is installed remains in good condition and performs as it should. Engine Oil has a variety of functions, but is sometimes referred to simply as lubricating oil because of its primary role as a lubricant.
Engine Oil is almost always used in equipment that has an engine. Inside the engine, parts rotating at high speeds come into contact with each other, and heat is generated by the friction. Engine Oil absorbs this heat and prevents wear by reducing contact between parts.
Engine Oil is used in a wide variety of equipment. Typical examples are automobile and motorcycle engines. Engine oil maintains engine performance by preventing parts from contacting each other and providing a cooling effect. It also serves to protect the engine from contaminants.
They are also used in ship and aircraft engines. Marine engines are subject to high temperatures due to prolonged use, so they must be durable at high temperatures. Aircraft engines need to withstand use at high altitudes, which may require high-viscosity oil.
In addition, it is sometimes used in machine tools and construction machinery.
The working principles of Engine Oil are:
Engine Oil reduces friction between metal parts and reduces wear. Lubrication occurs when the oil penetrates the gaps between the piston and cylinder parts, thereby facilitating the smooth operation of the machine.
A film of oil between the piston and cylinder seals the fuel gases during the compression and combustion processes, producing energy efficiently. Increased sealing also leads to increased engine power and fuel economy. One factor that contributes to a better seal is the viscosity of the Engine Oil.
Viscosity is expressed in terms of Winter (W), which is the limit for use at low temperatures, and 100°C, which is the viscosity of the oil at 100°C. The viscosity of an engine oil is expressed as a number. The viscosity of Engine Oil used in general passenger cars is about 10W-40 for high products and 0W-20 for low products.
Low viscosity oil is characterized by the fact that the oil is soft even at low temperatures and has good starting performance, which improves fuel efficiency at low temperatures. High viscosity oil is characterized by its ability to form a firm oil film and protect the engine from damage caused by friction even at high speeds when the Engine Oil is running at high temperatures.
Engine Oil absorbs the heat and dissipates it to the outside, thereby demonstrating its cooling effect. Generally, Engine Oil is circulated, and heat is discharged to the outside by circulating heat radiation. For equipment that generates a lot of heat, a separate heat exchanger or similar device may be installed externally.
Engine Oil cleans dirt inside the engine and keeps the engine clean. However, since there is a limit to its cleaning capacity, Engine Oil should be changed periodically.
Engine Oil also serves as an anti-rust agent for the engine. It forms a film on the inside of the engine and protects the equipment from rust by blocking the adhesion of oxygen.
Engine Oil has a base oil, to which chemical synthetic oil and additives are added to condition its performance while removing impurities. Engine Oil can be divided into three types: mineral oil, partially synthetic oil, and chemically synthesized oil, depending on the amount of these additives.
Mineral Oil is the least expensive Engine Oil available and is refined by removing impurities from crude oil. Mineral oil is not suitable for high-speed driving where the engine is subjected to severe stress: it is better suitable for general passenger vehicles.
Partially synthetic oils are made by adding high-quality synthetic oil to mineral oil and offer an excellent balance between quality and price.
100% synthetic oil is a high quality oil with impurities removed to the utmost limit and additives that protect the Engine Oil. It has the performance to withstand harsh conditions such as motor sports.
*Including some distributors, etc.
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Anti-Seize Technology Inc (AST) was founded in 1971 and is headquartered in Franklin Park, Illinois. AST is a global manufacturer and supplier of anti-seize compounds for petroleum, food processing, steel, paper, transportation, earth moving, agriculture, mining, fire protection, plumbing, and construction industries. Product offerings include anti-seize compounds, thread sealants, anaerobic thread lockers, casketing, sealing-caulking and adhesives, food grade products, plumbing specialties, lubricants-penetrants, protectants, coatings, greases, aerosol cleaners-degreasers, hand cleaners, and lubricant application equipment.
Lelu Lubrication Engineers is a lubricant manufacturer and distributor based in Wichita, KS. Established in 1951, the company formulates and manufactures lubricants to reduce friction and minimize wear for different motors and compressors, including electric motors, compressors, hydraulic systems, pellet mills, and open gear systems. They also offer personal consultations to create custom lubricants for specific equipment and lubrication needs. LE serves various industries, including agriculture, construction, food & beverage, cement & concrete, and industrial equipment.
Spin Srl, founded in 1978 and headquartered in Rimini, Italy, is a manufacturer of automotive workshop equipment. The company's Spin-branded equipment covers most of the requirements of traditional automotive workshops and includes ATF automatic gearbox oil exchangers, ultrasonic washing tacks, and electric test benches. It also offers an extensive catalog of Marcotools by Spin, which includes video scopes, measuring tools, and trolley jacks. Spin Srl updates and releases new product catalogs for both brands annually.
Schaeffer Manufacturing Co., founded in 1893 and based in St. Louis, Missouri, is a manufacturer of lubricants, fuel additives, and chemicals. Its product portfolio includes diesel fuel additives, hydraulic fluids, and synthetic motor oils. It also sells metalworking fluids, food-grade lubricants, and specialized industrial oils. The company’s engine oils are formulated with proprietary friction modifiers Penetro and Micron Moly that help reduce wear and friction on bearings, pistons, and valve trains. The company sells its products all over the U.S. and in over 45 other countries and serves several markets such as trucking, construction, and agriculture.
Castrol Limited, established in 1899, is based in Berkshire, United Kingdom, as a manufacturer of industrial and automotive lubricants. It specializes in manufacturing engine oils, metalworking fluids, plant-based oils, thermal fluids, and lithium-based greases. Its manufactured products are utilized for automotive, metalworking, industrial, machinery, and engineering industries across Africa, America, Asia Pacific, Europe, and the Middle East. The company obtained ISO 9001 certification and adheres to REACH and GHS regulations. It has partnered with the Honda MotoGP Team, Jaguar TCS Racing Formula E Team, and BWT Alpine F1 Team. In 2012, it partnered with NASA to begin its project on Mars.
Torco International Corp, an American company established in 1950 and based in Ontario, California, is a manufacturer and supplier of engine oils and lubricants. The company’s product portfolio includes street vehicle oils, racing oils, and transmission and gear oils. These products are used in various applications, including the automotive industry, powersports for recreational vehicles, and industrial and heavy-duty sectors for diesel trucks and other heavy machinery. The company offers services such as technical assistance, online shopping directly from its website, and refunds.
Mobil, established in 1911, is located in Fairfax, Virginia, USA, and is a manufacturer, distributor, and supplier of great-quality lubricants and fuels. The company's diverse product range includes engine oils, transportation fluids, and industrial lubricants, catering to various industries such as automotive, aviation, marine, and industrial sectors. Mobil's advanced lubrication solutions are designed to enhance efficiency, performance, and equipment longevity. The company aims to provide ideal products that ensure industries operate smoothly while minimizing environmental impact.
Ranking as of May 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Lubrication Engineers |
34.5%
|
| 2 | Castrol Limited |
21.5%
|
| 3 | Mobil |
11.3%
|
| 4 | Anti-Seize Technology, A.S.T. Industries, Inc. |
10.9%
|
| 5 | Torco International Corp |
7.4%
|
| 6 | Schaeffer Manufacturing Co. |
6.4%
|
| 7 | Spin S.r.l. |
5.3%
|
| 8 | Coolants Plus, Inc. |
2.8%
|
Derivation Method
The ranking is calculated based on the click share within the engine oil page as of May 2025. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
United States of America
|
2 | 66.7% |
|
Italy
|
1 | 33.3% |
117 products found
117 products
Starry Oil Co., Ltd.
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Features of Zerol HD46 ■Zerol HD46 has the following features when used in combination with the next-generation new refrigerant HFO1234yf compared ...
Yagyu Shokai Co., Ltd.
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■Features -Special sealant reduces oil leakage due to rubber seal deterioration. ・Suitable for aging and heavy-mileage vehicles.
Yagyu Shokai Co., Ltd.
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■Features This is a multi-grade oil that can be used with confidence in a variety of agricultural machinery.
Keiji Kosan Co., Ltd.
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■Engine oil Engine oil is the heart of your car, and it can also be called its blood. Due to the continuous progress of automobile technology, the ...
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Yagyu Shokai Co., Ltd.
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■Features ・The SHIELD effect provides protection and fuel efficiency that is compatible with high-performance engines. ・SP/GF-6B 0W-16 is suitabl...
Yagyu Shokai Co., Ltd.
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■Features The COMFORT effect maintains a comfortable engine under various driving conditions.
Aztec Co., Ltd.
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V100% synthetic oil with the highest lubrication performance. Suitable for engine use in extremely harsh environments.
2 models listed
Aztec Co., Ltd.
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■Summary We recommend purchasing them at the same time as they will need to be replaced within the first 5 hours.
Blitz Co., Ltd.
450+ people viewing
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■for TURBO / RACING 5W-30 SUPER SLICK SYNTHETIC Manufactured in compliance with API's top category "SN/ILSAC GF-5". This is a non-polymer type raci...
7 models listed
Daizo Co., Ltd.
150+ people viewing
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■Product overview The highest quality engine oil with excellent viscosity properties. A high-performance engine oil that is ideal for harsh driving...
Daizo Co., Ltd.
140+ people viewing
Last viewed: 21 hours ago
■Product overview This is the highest grade gasoline engine oil based on SN/GF-4/0W-20 and evaluated in the latest engines. ■Features We have set ...
Daizo Co., Ltd.
130+ people viewing
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■Product overview This is the highest grade gasoline engine oil based on SN/GF-4/5W-30 and evaluated in the latest engines. ■Features We have set ...
Daizo Co., Ltd.
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■Product overview This is the highest grade gasoline engine oil based on SN/GF-5/10W-30 and evaluated using the latest engines. ■Features We have ...
Daizo Co., Ltd.
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■Product overview This is the highest quality diesel engine oil that is compatible with vehicles equipped with DPF (Diesel Particulate Filter) and ...
Daizo Co., Ltd.
110+ people viewing
■Product overview This is the highest quality diesel engine oil that is compatible with vehicles equipped with DPF (Diesel Particulate Filter) and ...
Daizo Co., Ltd.
120+ people viewing
Last viewed: 21 hours ago
■Product overview This is the highest quality diesel engine oil that is compatible with vehicles equipped with DPF (Diesel Particulate Filter) and ...
Daizo Co., Ltd.
130+ people viewing
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■Product overview This is the highest grade diesel engine oil for DPF (diesel particulate filter) for diesel passenger cars and commercial vehicles...
Daizo Co., Ltd.
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■Product overview The highest quality engine oil with excellent viscosity properties. A high-performance engine oil that is ideal for harsh driving...
Daizo Co., Ltd.
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■Product overview This is the highest grade gasoline engine oil based on SN/GF-4/0W-20 and evaluated in the latest engines. ■Features We have set ...
Ochiai Knives Industry Co., Ltd.
170+ people viewing
Last viewed: 22 hours ago
Carefully selected base oil additives that prevent carbon buildup and generate little smoke.
Chukyo Kasei Kogyo Co., Ltd.
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Last viewed: 4 hours ago
■Features High Power Longer Turbo: Provides bearing corrosion protection and high temperature deposit protection to satisfy supercharged diesel eng...
10 models listed
Chukyo Kasei Kogyo Co., Ltd.
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API classification ■CF-4 Compliant with the 1991 exhaust gas regulations, this product is for diesel engines operated under the harshest conditions...
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Chukyo Kasei Kogyo Co., Ltd.
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API classification ■CF-4 Compliant with the 1991 exhaust gas regulations, this product is for diesel engines operated under the harshest conditions...
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Chukyo Kasei Kogyo Co., Ltd.
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■Features You can expect long life by using synthetic oil as the base oil, and fuel efficiency by using low viscosity engine oil such as 0W-20. *O...
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Idemitsu Kosan Co., Ltd.
280+ people viewing
Last viewed: 1 day ago
■Applications Engine oil exclusively for gas engines used in GHP (gas heat pumps). ■Essence This engine oil is made by effectively blending carefu...
Idemitsu Kosan Co., Ltd.
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■Applications This is an oil exclusively for large engines that has both reduced Ash content and high oxidation stability. ■Essence This high-grad...
