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Car Engines Lubrication

Car Engines Lubrication

3 days
This course is not scheduled.
Who should attend?


    • Engineers and technical staff involved in the development, recommendation, manufacturing, sales, technical service of engine lubricants.
    • Engineers and technical staff involved in the study, testing, use, development, tuning of Diesel and gasoline engines.


  • Advanced
  • This course provides a deeper knowledge on the role and the action mechanisms of the lubricant in different lubricated parts of an internal combustion engine, and leads to a better understanding of the complexity of the system of development of engine lubricants.
Learning Objectives
  • Upon completion of the course, participants will be able to:
  • perform a complete review of the lubrication circuit of internal combustion engines and of the functional properties required to insure the proper lubrication of the different organs,
  • detail the chemical composition of the products,
  • give notions on the codes of practice imposed by the standardization and certification organizations,
  • explain the formulation principles of engine lubricants, the performance characterization testing methods,
  • give the principles of follow-up of engine lubricant in service.
Course Content

Engine oils classifications & specifications

0.75 day

  • Evolution of the engine oils market (passenger cars and industrial vehicles). SAE viscosity classification; API, ILSAC, ACEA, global classifications. ACEA, API and global service specifications. Engine testing for lubricants performance evaluation: wear protection, deposits formation tendency, oxidation stability (thickening), foaming, aeration, …

Lubrication circuit

0.5 day

  • Principle, role and description. Constituting elements (sumps, oil pumps, pressure limiters, filters, coolers).
  • Lubricated/cooled points: pistons, bearings (connecting rods, camshafts), turbo. Venting of foul gases.

Lubrication of the piston - Ring - Liner area

0.5 day

  • Essential properties of lubricants. Oil consumption. Mechanism of lubrication. Piston deposits formation. Coking. Degradation modes (abrasive, adhesive, corrosive wear). Bore polishing.

Lubrication of the shaft line & timing

0.5 day

  • Lubrication of bearings, lubrication regimes, analysis of the failure modes of bearings, rocker arms, tappets, hydraulic tappets, (abrasive, adhesive, fatigue, cavitation, …, wear).
  • Essential properties of the lubricant and influence on fuel economy.

Atiel system of engine oil development & results of the development

0.5 day

  • Notions on the composition of engine lubricants (base oils and additives). Notions on the ATIEL development system of engine oils; principle of development of an engine oil.
  • Physico-chemical testing of engine oils.

Analysis of engine oils in service

0.25 day

  • Evolution of the characteristics of the lubricant with its ageing (viscosity, elements content, …). Characteristics bond to contamination and engine wear).
  • Analytical means and interpretation of the results.
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Ways & Means
  • Interactive exercises with the teacher to determine the lubricant to use according to the type of vehicle, the climate and operating conditions.
  • Interactive exercises of questions-answers between the participants using sets of play cards to synthetize the essential points of the lectures.