Can You Mix Different Colors of Grease? Unveil the Truth

Can You Mix Different Colors of Grease?

Can different greases be mixed together? Mixing different colored greases may not be a good idea as incompatible bases can result in issues.

Unless you know the original grease in the bearing, it’s best not to mix greases. Mixing incompatible greases can lead to thin grease, affecting performance.

Every grease has its own compatibility chart. Some greases, like aluminum complex and polyurea-thickened greases, are highly incompatible with others.

What Grease Should Not Be Mixed?

Greases with different bases, such as lithium and molybdenum sulfide, should not be mixed. Incompatibility can cause softening or hardening of the grease.

Can You Mix Different Colors of Grease? Unveil the Truth


Does Grease Color Matter?

While grease color can help with identification, it’s more important to select the right grease based on application rather than color.

Other properties like dropping point, shear stability, and pumpability can also be affected by mixing incompatible greases.

Can You Mix Different Colors of Grease? Unveil the Truth


Best Practices for Mixing Greases

It’s always best practice to avoid mixing different types of grease to prevent potential catastrophic failure of lubricated components.

When changing greases, ensure to completely flush out the old grease before introducing the new one to avoid compatibility issues.

Remember, the decision to mix greases should be made carefully, considering the specific requirements of the equipment and the manufacturer’s recommendations.


In conclusion, it is generally not recommended to mix different colors of grease due to the potential for incompatibility issues. Always follow manufacturer guidelines and best practices to ensure optimal lubrication performance.

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