Certified Lubricating Grease Specialist (CLGS) Exam Preparation


This 24-hour on-line course provides an examination of the types of greases, thickeners, base oils and additives used in lubricating grease as well as methods of manufacturing, testing methodology and their use in bearings are covered. Topics include the following:

• Base Oils
• Thickeners
• Performance Additives
• Grease Manufacturing
• Grease Testing and Analysis
• Bearings
• Grease Selection Criteria
• Applications(food contact, industrial, automotive, aerospace)
• Dispensing (manual, semi-automated, and fully automated greasing systems)


Certified Lubricating Grease Specialist (CLGS) certification is an indicator that an individual possesses a high level of expertise in the field of grease. NLGI recognizes CLGS certified individuals as grease industry experts. The CLGS certification will serve as a useful tool for employers to screen potential employees and for OEMs and end users to ensure that consultants and suppliers are qualified to make grease related recommendations. (Prerequisite to this course include completion of MLA or MLT certification course).