Lubrication Engineers, Inc.

Certified Lubrication Specialist



Strengthen your lubrication expertise, including everything from the fundamentals to problem solving and analysis. Optional STLE testing available.

Common job titles for individuals who would become Certified Lubrication Specialists include: equipment operators, lubrication technicians & engineers, maintenance managers & supervisors, reliability engineers, operations managers, predictive maintenance technicians, manufacturing and industrial engineers, oil analysis personnel, lubricant consultants, etc. Typically, these individuals are directly involved in machinery lubrication or oil analysis, or play a role in recommending, selecting or using lubricants.


Certified Lubrication Specialist (CLS) is the only independent certification for the lubrication professional that verifies your broad lubrication engineering knowledge. Certification recognizes those individuals who possess current knowledge of lubrication fundamentals and best practices in lubrication maintenance in industrial settings. Certified individuals must have at least three years of experience in the field of lubrication.

Course Content

The CLS course will cover all categories of the STLE Certified Lubrication Specialist Exam as specified below.

  • Fluid Power
  • Bearings
  • Seals
  • Problem Solving
  • Lubricant Manufacturing
  • Solvents & Cleaners
  • Fluid Condition
  • Monitoring & Reducing Consumption
  • Pneumatics
  • Metalworking
  • Lube Analysis
  • Transportation
  • Storage, Handling & Application
  • Gears
  • Lube Fundamentals
  • Lubrication Programs

Expert Instructor

Ray Thibault, CLS, OMA I & II, MLT I & II, MLA II & III
Owner, Lubrication Training & Consulting (LTC)

Optional STLE Exam Registration

STLE requires that applicants taking the certification exam must attest to three years minimum experience in the field of lubrication. Further, in the event of a failed exam, a one-year waiting period will be required before retaking the examination.

Qualified candidates should contact STLE, in advance of the training, at 847-825-5536 or follow this CLS Exam Registration link to register for testing. The $450 testing fee should be paid directly to STLE.

Private training

We can conduct private training for your employees at our facility or yours.

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