Automotive and Industrial Lubricants - Shelf Life

Automotive and Industrial Lubricants

Product Shelf Life

In general, liquid lubricants(not greases) will remain intact for a number of years. The main factor affecting the life of the oil is the storage condition for the products. Exposure to extreme temperature changes, and moisture will reduce the shelf life of the lubricants.

It is important to note that engine/motor oil, and transmission oil industry performance requirements are changing rapidly. The product may be stored three years and still be intact, but may not meet the latest specifications for your vehicle.

As a general rule, the simpler the oil formulation, the longer the shelf life. The following is a guideline under protected conditions:

Product Shelf Life
Base Oils, Process Oils Three(3) years
Hydraulic Oils, Compressor Oils, General Purpose Lubricating Oils Two(2) years
Engine Oils and Transmission Oils Three(3) years
Industrial and Automotive Gear Oils Two(2) years
Metal Working and Cutting Oils One(1) year
Greases Two(2) years

The following are signs of storage instability in a lubricant:

  • Settling out of the additives as a gel or sticky liquid
  • Floc or haze
  • Precipitates/solid material
  • Color change or haziness

Water contamination in a lubricant can be detected by a "milky" appearance of the product.

A sign of grease deterioration is the separation of the liquid oil from the solid grease.