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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 March, 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 March 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | Lubrication Engineers |
35.6%
|
| 2 | Castrol Limited |
19.4%
|
| 3 | Mobil |
11.7%
|
| 4 | Anti-Seize Technology, A.S.T. Industries, Inc. |
11.3%
|
| 5 | Torco International Corp |
7.3%
|
| 6 | Schaeffer Manufacturing Co. |
6.3%
|
| 7 | Spin S.r.l. |
5.4%
|
| 8 | Coolants Plus, Inc. |
3.0%
|
Derivation Method
The ranking is calculated based on the click share within the engine oil page as of March 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% |
132 products found - Page 2
132 products - Page 2
Nihon Unibyte Co., Ltd.
100+ people viewing
Last viewed: 23 hours ago
Very Fast Response
■For European cars and Japanese cars before 2000 This is a partially synthetic oil that is ideal for European cars before 2000 and cars with increa...
Daizo Co., Ltd.
80+ people viewing
Last viewed: 6 hours ago
Standard Response
■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 ...
Nihon Unibyte Co., Ltd.
90+ people viewing
Last viewed: 23 hours ago
Very Fast Response
■Ester-based high spec oil for 2 strokes A high-performance engine oil designed specifically for competitions that solves various problems that oft...
Daizo Co., Ltd.
70+ people viewing
Last viewed: 1 day ago
Standard Response
■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 ...
Nihon Unibyte Co., Ltd.
100+ people viewing
Last viewed: 5 hours ago
Very Fast Response
■Heat-resistant racing spec oil Unil opal's highest quality racing spec oil for motorcycles. Compliant with JASO MA2 standard, provides strong prot...
Daizo Co., Ltd.
60+ people viewing
Last viewed: 22 hours ago
Standard Response
■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 ...
Nihon Unibyte Co., Ltd.
120+ people viewing
Last viewed: 1 day ago
Very Fast Response
■High quality mineral oil ideal for air-cooled motorcycles and old cars Unil opal mineral oil for motorcycles. The special additives used form a pr...
Daizo Co., Ltd.
70+ people viewing
Last viewed: 20 hours ago
Standard Response
■Product overview This is the highest quality diesel engine oil that is compatible with vehicles equipped with DPF (Diesel Particulate Filter) and ...
Nihon Unibyte Co., Ltd.
110+ people viewing
Last viewed: 13 hours ago
Very Fast Response
PSA & Renault approved LSPI compatible oil Ideal for direct injection engines and diesel engines of French cars Recommended oil for all French ca...
Nihon Unibyte Co., Ltd.
80+ people viewing
Last viewed: 23 hours ago
Very Fast Response
■Ester-based high-spec oil for 2-stroke scooters A high-performance engine oil designed specifically for competitions that solves various problems ...
Daizo Co., Ltd.
60+ people viewing
Last viewed: 19 hours ago
Standard Response
■Product overview This is the highest quality diesel engine oil that is compatible with vehicles equipped with DPF (Diesel Particulate Filter) and ...
Nihon Unibyte Co., Ltd.
130+ people viewing
Last viewed: 1 day ago
Very Fast Response
Compatible with VW508/509 Maintains the high performance of German cars for a long time. Fuel saving oil compatible with Volkswagen 508.00/509.00. ...
Nihon Unibyte Co., Ltd.
110+ people viewing
Last viewed: 1 day ago
Very Fast Response
■Highly durable oil for city riding Highly durable oil for city riding. The special additives used form a protective layer of oil at high temperatu...
Daizo Co., Ltd.
70+ people viewing
Last viewed: 1 hour ago
Standard Response
■Product overview This is the highest quality diesel engine oil that is compatible with vehicles equipped with DPF (Diesel Particulate Filter) and ...
Chukyo Kasei Kogyo Co., Ltd.
450+ people viewing
Last viewed: 14 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.
200+ people viewing
Last viewed: 22 hours ago
API classification ■CF-4 Compliant with the 1991 exhaust gas regulations, this product is for diesel engines operated under the harshest conditions...
3 models listed
Chukyo Kasei Kogyo Co., Ltd.
200+ people viewing
Last viewed: 19 hours ago
API classification ■CF-4 Compliant with the 1991 exhaust gas regulations, this product is for diesel engines operated under the harshest conditions...
2 models listed
Chukyo Kasei Kogyo Co., Ltd.
810+ people viewing
Last viewed: 2 hours ago
■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...
10 models listed
Idemitsu Kosan Co., Ltd.
220+ people viewing
Last viewed: 1 day ago
Very Fast Response
■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.
210+ people viewing
Last viewed: 1 day ago
Very Fast Response
■Applications This is an oil exclusively for large engines that has both reduced Ash content and high oxidation stability. ■Essence This high-grad...
