Shell Gadus S3

Shell Gadus S3 why compatibility matters?

Mixing incompatible greases can reduce lubrication efficiency and increase maintenance time and costs, especially at high temperatures. Grease mixtures can become too thick or too soft, and may leak from bearings. To avoid incompatibility problems, Shell recommends completely replacing the grease during a routine service.
 

Shell Gadus S3 checking compatibility

Before changing to another grease, there are three things to check:

1. Thickener type

2. Base-oil viscosity

3. NLGI grade.

Shell Gadus grease names contain all this information.
 

Shell Gadus S3 Thickener guide letters

T = Extreme-temperature performance using Shell polyurea thickeners

V = Versatile, multipurpose applications using lithium and lithium complex thickeners

A = Thickeners for wet (aqueous) conditions: Calcium thickener

U = Unusual non-melting thickeners: Clay thickener
 

Shell's Advanced Polyurea "T" Thickener

Shell’s research teams have developed superior greases using advanced polyurea thickener technology. These products are designed to outperform conventional greases in extreme-temperature applications, such as electric motors and automotive constant-velocity joints. In one example, a global steel manufacturer reported that it reduced bearing failure rates by 75% and grease consumption by 30% through switching to Shell Gadus S3 T100 polyurea technology grease.