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Welcome to the LSC Customer Portal, where our customers can view and download useful information such as MSDS's. If you would like to open an account, please contact us.

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LUBRICATION FUNDAMENTALS

bigstock-Pouring-Oil

DEFINITION OF A LUBRICANT:

A lubricant is a substance that minimizes friction.

THE ROLE OF A LUBRICANT:

  • Prevents wear
  • Extends the life of engine parts
  • Removes contaminants
  • Reduces friction
  • Retards corrosion
  • Cools/carries off heat

LUBRICANT COMPOSITION:

Typically, lubricants contain from 70-99% base oils and 30-1% additives. Choosing the right base oils and additives can be determined by the application in which the lubricant is being used.

BASE OIL COMPOSITION:

Base oils are produced by refining crude oil. Crude oil can be mineral, plant/animal, or synthetic based.

THE REFINING PROCESS WORKS TO:

  • Obtain desired viscosity, flash point and pour point.
  • Removes undesirables, such as aromatics and waxes.
  • Improves color
  • Stabilizes

BASE OIL CLASSIFICATIONS:

Base oils are grouped into 5 classes:

Group I Solvent Neutral HVI stocks

Group II Hydrocracked / Hydroprocessed HVI stocks

Group III Severely Hydrocracked / Hydroprocessed VHVI stocks

Group IV All PAO’s

Group V All others not included in Group I,II,III or IV

With each increasing group classification, more and more intense processing is involved. The result is a higher quality, but more expensive base oil.

ADDITIVES:

  • Add performance properties to lubricants.
  • Improve specific base oil properties.
  • Lubricants contain many additives depending upon type and intended service.

For example, some engine oils may contain up to 15 additives.

TYPES OF ADDITIVES:

  • Anti-wear
  • Extreme pressure
  • Dispersants
  • Rust inhibitors
  • Detergents
  • Oxidation inhibitors
  • Pour point depressants
  • Foam inhibitors
  • Viscosity index improvers

QUALITY BASE MATERIALS AND ADDITIVES ARE ESSENTIAL BUILDING
BLOCKS FOR A QUALITY LUBRICANT.