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S-oil settled as lube base oil maker with international competition leading in the local market.

Ever since its foundation in 1976 as the first lube base oil refinery in South Korea, S-oil Corporation set a milestone in South Korean base oil market which entirely depended on import and has been a leading supplier of lube base oil in South Korea as well as global market.

S-oil has 44,700 barrels per day of production capacity with #1 LBO Plant (aramcoDURA / aramcoPRIMA) and #2 LBO Plant (aramcoULTRA).

S-oil is the only company which has full line-up of Group Ⅰ/Ⅱ/Ⅲ base oil products in South Korea and is positioned as one of the world class manufacturers supplying high quality base oils to global market not only Asia but also EU and North America.

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Under the brand name of aramcoPRIMA, S-OIL produces 6 different products: 3 solvent-dewaxed products(aramcoPRIMA 100S, aramcoPRIMA 150S, aramcoPRIMA 500S) and 3 catalytic-dewaxed products(aramcoPRIMA 60, aramcoPRIMA 150, aramcoPRIMA 500). Especially, the catalytic-dewaxed base oil, with its superior properties such as low aromatic contents, high naphthene contents and high VI, is used to manufacture high quality lubricant product.

aramcoPRIMA

Ultra

Under the brand name of aramcoDURA, S-OIL produces 3 different products: aramcoDURA 60, aramcoDURA 600 and aramcoDURA 150BS.

aramcoDURA

aramcoULTRA base oil is produced in 5 different viscosity grades: aramcoULTRA 2, aramcoULTRA 3, aramcoULTRA 4, aramcoULTRA 6 and aramcoULTRA 8. It is a highly purified product with extremely low unsaturated aromatic contents and impurity as well as superior NOACK, CCS quality. aramcoULTRA base oil, a high quality product acknowledged as 'synthetic oil' and a substitute for PAO(Poly-Alpha Olefin), is used to manufacture top-notch quality lubricant product. 

aramcoULTRA

Ultra S-8 is a base oil series consists of five viscosity grades,Ultra-S 2,3,4,6 and 8 named according to their viscosity (cSt) at 100.

Ultra S-8

Ultra S-6 is a base oil series consists of five viscosity grades,Ultra-S 2,3,4,6 and 8 named according to their viscosity (cSt) at 100.

Ultra S-6

aramcoDURA 600

aramcoPRIMA 500S is used in engine oil and marine oil.

aramcoPRIMA 500S

aramcoPRIMA 150S

aramcoULTRA 8 is used in engine oil, axle oil and automatic transmission fluid.

aramcoULTRA 8

Ultra S-4 is a base oil series consists of five viscosity grades,Ultra-S 2,3,4,6 and 8 named according to their viscosity (cSt) at 100.

Ultra S-4

aramcoPRIMA 100S is used in automatic transmission fluid.

aramcoPRIMA 100S

aramcoPRIMA 500 is used in white oil and process oil

aramcoPRIMA 500

S-oil

S-oil settled as lube base oil maker with international competition leading in the local market.

Ever since its foundation in 1976 as the first lube base oil refinery in South Korea, S-oil Corporatio

S-oil - Knowde

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API Group I - Base Stocks & Oils - Fluids & Lubricants - S-oil - Knowde

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