PT Wiraswasta Gemilang Indonesia (WGI) is the largest private lubricant manufacturer in Indonesia, established on July 11, 1979. The company is headquartered in Cibitung, Jawa Barat, with a corporate office in Central Jakarta. WGI employs around 273 people and operates in the petroleum and coal products manufacturing industry.

WGI produces a wide range of high-performance lubricants under the brands EVALUBE and PENNZOIL, which is licensed from Pennzoil USA. Their product offerings include engine oils for both gasoline and diesel engines, automotive gear oils, marine diesel lubricants, hydraulic fluids, heat transfer oils, and automatic transmission fluids. The company is committed to quality assurance and innovation, operating one of the top laboratories in the Asia Pacific region, recognized for its excellence in a proficiency test program.

WGI also engages in re-refinery operations, promoting environmental sustainability through energy purification and resource recycling. The company serves various sectors, including automotive manufacturers, industrial machinery operators, and marine transportation companies, focusing on customer satisfaction and continuous development.